Seagate ST3250820ACE User Manual

DB35.3 Series PATA  
ST3750840ACE  
ST3500830ACE  
ST3400820ACE  
ST3320820ACE  
ST3300820ACE  
ST3250820ACE  
DB35.3 Series PATA  
ST3750840ACE  
ST3500830ACE  
ST3400820ACE  
ST3320820ACE  
ST3300820ACE  
ST3250820ACE  
© 2006, Seagate Technology LLC All rights reserved  
Publication number: 100427568, Rev. C  
August 2006  
Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC.  
SeaTools, SeaFONE, SeaBOARD, SeaTDD, and the Wave logo are either registered trade-  
marks or trademarks of Seagate Technology LLC. Other product names are registered trade-  
marks or trademarks of their owners.  
Seagate reserves the right to change, without notice, product offerings or specifications. No  
part of this publication may be reproduced in any form without written permission of Seagate  
Technology LLC.  
Contents  
5.0  
DB35.3 Series PATA Product Manual, Rev. C  
iii  
iv  
DB35.3 Series PATA Product Manual, Rev. C  
vi  
DB35.3 Series PATA Product Manual, Rev. C  
1.0  
Introduction  
This manual describes the functional, mechanical and interface specifications for the following Seagate®  
DB35.3 Series PATA model drives:  
ST3750840ACE  
ST3500830ACE  
ST3400820ACE  
ST3320820ACE  
ST3300820ACE  
ST3250820ACE  
These drives provide the following key features:  
• 7,200-RPM spindle speed.  
• High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5.  
• Perpendicular recording technology. Tunneling Giant magnetoresistive (TGMR) recording heads and  
Enhanced Partial Response-Maximum Likelihood (EPRML) technology, which provide the drives with  
increased areal density.  
• State-of-the-art cache and on-the-fly error-correction algorithms.  
• Full-track multiple-sector transfer capability without local processor intervention.  
• Quiet operation.  
• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.  
• Support for S.M.A.R.T. drive monitoring and reporting.  
• Support for Read Multiple and Write Multiple commands.  
• Support for autodetection of master/slave drives that use cable select (CSEL).  
DB35.3 Series PATA Product Manual, Rev. C  
1
                                         
2
DB35.3 Series PATA Product Manual, Rev. C  
2.0  
Drive specifications  
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal  
power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the  
following drive models:  
ST3750840ACE  
ST3500830ACE  
ST3400820ACE  
ST3320820ACE  
ST3300820ACE  
ST3250820ACE  
2.1  
Specification summary table  
The specifications listed in the table below are for quick reference. For details on specification measurement or  
definition, see the appropriate section of this manual.  
DB35.3 Series PATA Product Manual, Rev. C  
3
         
Table 1:  
Drive specifications summary for 750, 500, and 400 Gbyte models  
Drive specification  
ST3750840ACE  
750  
ST3500830ACE  
500  
ST3400820ACE  
400  
Formatted Gbytes (512 bytes/sector)*  
Guaranteed sectors  
1,465,149,168  
512  
976,773,168  
781,422,768  
Bytes per sector  
Default sectors per track  
Default read/write heads  
Default cylinders  
63  
16  
16,383  
Recording density, max  
Track density, max  
926 kbits/in  
145 ktracks/in  
128.2 Gbits/in2  
7,200 RPM  
1,030 Mbits/sec  
78 Mbytes/sec  
100 Mbytes/sec  
813 kbits/in  
781 kbits/in  
Areal density, max  
114.4 Gbits/in2  
128.2 Gbits/in2  
Spindle speed  
Internal data transfer rate, max  
Sustained data transfer rate, max  
I/O data-transfer rate, max  
ATA data-transfer modes supported  
72 Mbytes/sec  
PIO modes 0–4  
Multiword DMA modes 0–2  
Ultra DMA modes 0–5  
Cache buffer  
8 Mbytes  
Height, max  
26.1 mm (1.028 inches)  
Width, max  
101.6 mm (4.000 inches) +/- 0.010 inches  
146.99 mm (5.787 inches)  
Length, max  
Weight, typical  
720 grams  
4.16 msec  
16 sec  
635 grams  
Average latency  
Power-on to ready, max  
Standby to ready, max  
Track-to-track seek time, typical  
Average seek, read, typical  
Average seek, write, typical  
Startup current (max) 12V (peak)  
Voltage tolerance (including noise)  
16 sec  
<0.8 msec read; <1.0 msec write  
<11.0 msec  
<12.0 msec  
2.0 amps  
5V ± 5%  
12V ± 10%  
Ambient temperature  
operating  
0° to 60°C  
–40° to 70°C  
0° to 62°C  
–40° to 70°C  
nonoperating  
Temperature gradient, per hour max  
20°C (operating)  
30°C (nonoperating)  
Relative humidity  
5% to 90% (operating)  
5% to 95% (nonoperating)  
Relative humidity gradient, per hour max  
Wet bulb temperature, max  
30%  
37.7°C (operating)  
37.7°C (nonoperating)  
Altitude, operating  
–60.96 m to 3,048 m  
(–200 ft. to 10,000+ ft.)  
Altitude, nonoperating, max  
–60.96 m to 12,192 m below mean sea level  
(–200 ft. to 40,000+ ft below mean sea level.)  
Operational Shock, max  
Non-Operational Shock, max  
Vibration, operating  
63 Gs at 2 msec  
300 Gs at 2 msec  
5–22 Hz: 0.25 Gs, Limited displacement  
22–350 Hz: 0.50 Gs  
350–500 Hz:: 0.25 Gs  
4
DB35.3 Series PATA Product Manual, Rev. C  
Drive specification  
ST3750840ACE  
ST3500830ACE  
ST3400820ACE  
Vibration, nonoperating  
5–22 Hz: 0.25 Gs, Limited displacement  
22–350 Hz: 5.0 Gs  
350–500 Hz:: 1.0 Gs  
Drive acoustics, sound power  
Idle**  
2.8 bels (typical)  
3.0 bels (max)  
2.7 bels (typical)  
2.9 bels (max)  
CE seek profile  
2.9 (typical)  
3.0 (max)  
2.8 (typical)  
2.9 (max)  
Nonrecoverable read errors  
Annualized Failure Rate (AFR)  
Warranty  
1 per 1014 bits read  
0.68%  
5 years on distribution units.  
To determine the warranty for a specific drive, use a web browser to  
access the following web page:  
From this page, click on the “Verify Your Warranty” link. You will be asked  
to provide the drive serial number, model number (or part number) and  
country of purchase. The system will display the warranty information for  
your drive.  
Contact start-stop cycles (25°C, 50% rel. humidity)  
50,000  
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment  
and formatting.  
**During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and  
power to operational levels.  
DB35.3 Series PATA Product Manual, Rev. C  
5
Table 2:  
Drive specifications summary for 320, 300, and 250 Gbyte models  
Drive specification  
ST3320820ACE  
320  
ST3300820ACE  
300  
ST3250820ACE  
250  
Formatted Gbytes (512 bytes/sector)*  
Guaranteed sectors  
625,142,448  
512  
586,072,368  
488,397,168  
Bytes per sector  
Default sectors per track  
Default read/write heads  
Default cylinders  
63  
16  
16,383  
Recording density, max  
Track density, max  
781 kbits/in  
145 ktracks/in  
114.4 Gbits/in2  
7,200 RPM  
1,030 Mbits/sec  
72 Mbytes/sec  
100 Mbytes/sec  
813 kbits/in  
Areal density, max  
Spindle speed  
Internal data transfer rate, max  
Sustained data transfer rate, max  
I/O data-transfer rate, max  
ATA data-transfer modes supported  
PIO modes 0–4  
Multiword DMA modes 0–2  
Ultra DMA modes 0–5  
Cache buffer  
8 Mbytes  
Height, max  
26.1 mm (1.028 inches)  
Width, max  
101.6 mm (4.000 inches) +/- 0.010 inches  
Length, max  
146.99 mm (5.787 inches)  
Weight, typical  
580 grams  
Average latency  
4.16 msec  
Power-on to ready, max  
Standby to ready, max  
Track-to-track seek time, typical  
Average seek, read, typical  
Average seek, write, typical  
Startup current (typical) 12V (peak)  
Voltage tolerance (including noise)  
16 sec  
16 sec  
<0.8 msec (read), <1.0 msec (write)  
<11.0 msec  
<12.0 msec  
2.0 amps  
5V ± 5%  
12V ± 10%  
Ambient temperature  
operating  
0° to 65°C  
nonoperating  
–40° to 70°C  
Temperature gradient, max  
20°C per hour (operating)  
30°C per hour (nonoperating)  
Relative humidity  
5% to 90% (operating)  
5% to 95% (nonoperating)  
Relative humidity gradient, per hour max  
Wet bulb temperature, max  
30%  
37.7°C (operating)  
37.7°C (nonoperating)  
Altitude, operating  
–60.96 m to 3,048 m  
(–200 ft. to 10,000+ ft.)  
Altitude, nonoperating, max  
–60.96 m to 12,192 m below mean sea level  
(–200 ft. to 40,000+ ft. below mean sea level  
Operational Shock, max  
Non-Operational Shock, max  
Vibration, operating  
63 Gs at 2 msec  
300 Gs at 2 msec  
5–22 Hz: 0.25 Gs, Limited displacement  
22–350 Hz: 0.50 Gs  
350–500 Hz:: 0.25 Gs  
6
DB35.3 Series PATA Product Manual, Rev. C  
Drive specification  
ST3320820ACE  
ST3300820ACE  
ST3250820ACE  
Vibration, nonoperating  
5–22 Hz: 0.25 Gs, Limited displacement  
22–350 Hz: 5.0 Gs  
350–500 Hz:: 1.0 Gs  
Drive acoustics, sound power  
Idle**  
2.7 bels (typical)  
2.9 bels (max)  
2.5 bels (typical)  
2.7 bels (max)  
CE seek profile  
2.8 bels (typical)  
2.9 bels (max)  
2.7 bels (typical)  
2.8 bels (max)  
Nonrecoverable read errors  
Annualized Failure Rate (AFR)***  
Warranty  
1 per 1014 bits read  
0.68%  
5 years on distribution units.  
To determine the warranty for a specific drive, use a web browser to access the  
following web page:  
From this page, click on the “Verify Your Warranty” link. You will be asked to  
provide the drive serial number, model number (or part number) and country of  
purchase. The system will display the warranty information for your drive.  
Contact start-stop cycles (25°C, 50% rel. humidity)  
50,000  
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment  
and formatting.  
**During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and  
power to operational levels.  
DB35.3 Series PATA Product Manual, Rev. C  
7
2.2  
Formatted capacity  
Formatted  
capacity*  
Guaranteed  
sectors  
Model  
Bytes per sector  
ST3750840ACE  
ST3500830ACE  
ST3400820ACE  
ST3320820ACE  
ST3300820ACE  
ST3250820ACE  
750 Gbytes  
500 Gbytes  
400 Gbytes  
320 Gbytes  
300 Gbytes  
250 Gbytes  
1,465,149,168  
976,773,168  
781,422,768  
625,142,448  
586,072,368  
488,397,168  
512  
512  
512  
512  
512  
512  
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environ-  
ment and formatting.  
2.2.1  
LBA mode  
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,  
where n is the number of guaranteed sectors as defined above.  
See Section 4.1.2, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-  
bit addressing support of drives with capacities over 137 Gbytes.  
2.3  
Default logical geometry  
Cylinders  
16,383  
Read/write heads  
Sectors per track  
16  
63  
8
DB35.3 Series PATA Product Manual, Rev. C  
               
2.4  
Recording and interface technology  
750GB  
500GB  
400GB  
320GB  
300GB  
250GB  
Interface  
ATA  
Recording method  
Perpendicular  
Recording density, KBPI (kbits/inch max)  
Track density, KTPI (ktracks/inch avg)  
926  
813  
781  
813  
145  
2
Areal density (Gbits/inch avg)  
128.2  
7,200  
1,030  
78  
114.4  
Spindle speed (RPM) (± 0.2%)  
Internal data transfer rate (Mbits/sec max)  
Sustained data transfer rate (Mbytes/sec max)  
I/O data-transfer rate (Mbytes/sec max)  
72  
100 (Ultra DMA mode 5)  
2.5  
Physical characteristics  
Drive specification  
Maximum height  
Maximum width  
Maximum length  
Typical weight  
(mm)  
(inches)  
26.1  
1.028  
(mm)  
(inches)  
101.6  
4.000 +/- 0.010  
(mm)  
(inches)  
146.99  
5.787  
ST3320820ACE, ST3300820ACE and ST3250820ACE  
ST3500830ACE and ST3400820ACE  
ST3750840ACE  
580 grams (1.28 lbs)  
635 grams (1.40 lbs)  
720 grams (1.59 lbs)  
Cache Size  
8 Mbytes  
DB35.3 Series PATA Product Manual, Rev. C  
9
                                     
2.6  
Seek time  
Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using  
drive diagnostics. The specifications in the table below are defined as follows:  
• Track-to-track seek time is an average of all possible single-track seeks in both directions.  
• Average seek time is a true statistical random average of at least 5,000 measurements of seeks between  
random tracks, less overhead.  
Typical seek times (msec)  
Track-to-track  
Read  
<0.8  
Write  
<1.0  
Average  
<11.0  
4.16  
<12.0  
4.16  
Average latency  
Note. These drives are designed to consistently meet the seek times represented in this manual. Physical seeks,  
regardless of mode (such as track-to-track and average), are expected to meet or exceed the noted values.  
However, due to the manner in which these drives are formatted, benchmark tests that include command  
overhead or measure logical seeks may produce results that vary from these specifications.  
2.7  
Start/stop times  
Power-on to Ready (sec)  
16 (max)  
16 (max)  
10 (max)  
Standby to Ready (sec)  
Ready to spindle stop (sec)  
2.8  
Power specifications  
The drive receives DC power (+5V or +12V) through a four-pin standard drive power connector.  
2.8.1 Power consumption  
Power requirements for the drives are listed in the table on page 11. Typical power measurements are based  
on an average of drives tested, under nominal conditions, using +5.0V and +12.0V input voltage at 25°C ambi-  
ent temperature.  
• Spinup power  
Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed.  
• Seek mode  
During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and does  
not execute a read or write operation. Servo electronics are active. Seek mode power represents the worst-  
case power consumption, using only random seeks with read or write latency time. This mode is not typical  
and is provided for worst-case information.  
• Read/write power and current  
Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-msec  
delay, then a 16-sector read followed by a 32-msec delay.  
• Operating power and current  
Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each  
10 reads) and 20 percent drive idle mode.  
• Idle mode power  
10  
DB35.3 Series PATA Product Manual, Rev. C  
                                           
Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in  
a random track location.  
• Standby mode  
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/  
write electronics are in power-down mode.  
Table 3:  
DC power requirements  
Power dissipation using consumer  
storage profile (ST3750840ACE values  
shown)  
Average  
(watts, 25° C)  
Average  
5V typ amps  
Average  
12V typ amps  
Spinup  
2.0 (peak)  
0.540  
Idle*  
9.30  
10.40  
8.20  
0.80  
0.80  
0.611  
0.719  
0.425  
0.106  
0.106  
Idle with offline activity  
Operating (CE seeks)  
Standby  
0.567  
0.510  
0.023  
Sleep  
0.023  
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and  
power to operational levels.  
DB35.3 Series PATA Product Manual, Rev. C  
11  
               
2.8.1.1  
Typical current profile  
Figure 1  
Typical 5V startup and operation current profile  
Figure 2  
2.8.2  
Typical 12V startup and operation current profile  
Conducted noise  
Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on  
the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.  
• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave  
injected noise at up to 10 MHz.  
• Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave  
injected noise at up to 10 MHz.  
Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write  
current.  
12  
DB35.3 Series PATA Product Manual, Rev. C  
               
2.8.3  
Voltage tolerance  
Voltage tolerance (including noise):  
5V ± 5%  
12V ± 10%  
2.8.4  
Power-management modes  
The drive provides programmable power management to provide greater energy efficiency. In most systems,  
you can control power management through the system setup program. The drive features the following  
power-management modes:  
Power mode  
Active  
Heads  
Spindle  
Rotating  
Rotating  
Stopped  
Stopped  
Buffer  
Tracking  
Tracking  
Parked  
Parked  
Enabled  
Enabled  
Enabled  
Disabled  
Idle  
Standby  
Sleep  
• Active mode  
The drive is in Active mode during the read/write and seek operations.  
• Idle mode  
The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc  
access is necessary.  
• Standby mode  
The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set the  
standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for a  
specifiable length of time. The standby timer delay is established using a Standby or Idle command. In Standby  
mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive accepts all  
commands and returns to Active mode any time disc access is necessary.  
• Sleep mode  
The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the drive buffer  
is disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it receives a  
Hard Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep mode and enters Standby  
mode with all current translation parameters intact.  
• Idle and Standby timers  
Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and  
begins counting down from its specified delay times to zero. If the standby timer reaches zero before any drive  
activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive  
accepts all commands and returns to Active mode when disc access is necessary.  
DB35.3 Series PATA Product Manual, Rev. C  
13  
                         
2.9  
Environmental specifications  
Ambient temperature  
2.9.1  
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.  
Actual drive case temperature should not exceed 75°C (167°F) within the operating ambient conditions. Rec-  
ommended measurement locations are shown in Figure 6 on page 25.  
Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet  
(3,048 meters).  
Operating  
ST3320820ACE, ST3300820ACE and ST3250820ACE  
ST3500830ACE and ST3400820ACE  
ST3750840ACE  
0° to 65°C (32° to 149°F)  
0° to 62°C (32° to 143.6°F)  
0° to 60°C (32° to 140°F)  
Nonoperating  
–40° to 70°C (–40° to 158°F)  
2.9.2  
Temperature gradient  
Operating  
Nonoperating  
20°C per hour (68°F per hour max), without condensation  
30°C per hour (86°F per hour max)  
2.9.3  
2.9.3.1  
Humidity  
Relative humidity  
Operating  
Nonoperating  
5% to 90% noncondensing (30% per hour max)  
5% to 95% noncondensing (30% per hour max)  
2.9.3.2  
Wet bulb temperature  
Operating  
37.7°C (99.9°F max)  
37.7°C (99.9°F max)  
Nonoperating  
2.9.4  
Altitude  
Operating  
–60.96 m to 3,048 m (–200 ft. to 10,000+ ft.)  
–60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)  
Nonoperating  
14  
DB35.3 Series PATA Product Manual, Rev. C  
                               
2.9.5  
Shock  
All shock specifications assume that the drive is mounted securely with the input shock applied at the drive  
mounting screws. Shock may be applied in the X, Y or Z axis.  
2.9.5.1  
Operating shock  
These drives comply with the performance levels specified in this document when subjected to a maximum  
operating shock of 63 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more  
than two times per second.  
2.9.5.2  
Nonoperating shock  
2 Disc models  
The nonoperating shock level that the drive can experience without incurring physical damage or degradation  
in performance when subsequently put into operation is 350 Gs based on a nonrepetitive half-sine shock pulse  
of 2 msec duration.  
3 and 4 Disc models  
The nonoperating shock level that the drive can experience without incurring physical damage or degradation  
in performance when subsequently put into operation is 300 Gs based on a nonrepetitive half-sine shock pulse  
of 2 msec duration.  
2.9.6  
Vibration  
All vibration specifications assume that the drive is mounted securely with the input vibration applied at the  
drive mounting screws. Vibration may be applied in the X, Y or Z axis.  
2.9.6.1  
Operating vibration  
The following table lists the maximum vibration levels that the drive may experience while meeting the perfor-  
mance standards specified in this document.  
5–22 Hz  
0.25 Gs (Limited displacement)  
22–350 Hz  
350–500 Hz  
0.50 Gs  
0.25 Gs  
2.9.6.2  
Nonoperating vibration  
The following table lists the maximum nonoperating vibration that the drive may experience without incurring  
physical damage or degradation in performance when subsequently put into operation.  
5–22 Hz  
0.25 Gs (limited displacement)  
22–350 Hz  
350–500 Hz  
5.0 Gs  
1.0 Gs  
DB35.3 Series PATA Product Manual, Rev. C  
15  
               
2.10  
Acoustics  
Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All mea-  
surements are consistent with ISO document 7779. Sound power measurements are taken under essentially  
free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.  
Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined  
by the following equation:  
(Number of seeks per second = 0.4 / (average latency + average access time)  
Table 4:  
Fluid Dynamic Bearing (FDB) motor acoustics  
Idle*  
CE seek profile  
ST3750840ACE  
ST3500830ACE  
ST3400820ACE  
ST3320820ACE  
ST3300820ACE  
ST3250820ACE  
2.8 bels (typ)  
3.0 bels (max)  
2.9 bels (typ)  
3.0 bels (max)  
2.8 bels (typ)  
3.0 bels (max)  
2.9 bels (typ)  
3.0 bels (max)  
2.7 bels (typ)  
2.9 bels (max)  
2.8 bels (typ)  
2.9 bels (max)  
2.7 bels (typ)  
2.9 bels (max)  
2.8 bels (typ)  
2.9 bels (max)  
2.5 bels (typ)  
2.7 bels (max)  
2.7 bels (typ)  
2.8 bels (max)  
2.5 bels (typ)  
2.7 bels (max)  
2.7 bels (typ)  
2.8 bels (max)  
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and  
power to operational levels.  
16  
DB35.3 Series PATA Product Manual, Rev. C  
       
2.11  
Electromagnetic immunity  
When properly installed in a representative host system, the drive operates without errors or degradation in  
performance when subjected to the radio frequency (RF) environments defined in the following table:  
Table 5:  
Radio frequency environments  
Performance  
level  
Reference  
standard  
Test  
Description  
Electrostatic discharge  
Radiated RF immunity  
Contact, HCP, VCP: ± 4 kV; Air:  
± 8 kV  
B
EN 61000-4-2: 95  
80 to 1,000 MHz, 3 V/m,  
80% AM with 1 kHz sine  
900 MHz, 3 V/m, 50% pulse  
modulation @ 200 Hz  
A
EN 61000-4-3: 96  
ENV 50204: 95  
Electrical fast transient  
Surge immunity  
± 1 kV on AC mains, ± 0.5 kV on  
external I/O  
B
B
A
EN 61000-4-4: 95  
EN 61000-4-5: 95  
EN 61000-4-6: 97  
EN 61000-4-11: 94  
± 1 kV differential, ± 2 kV com-  
mon, AC mains  
Conducted RF immunity  
Voltage dips, interrupts  
150 kHz to 80 MHz, 3 Vrms,  
80% AM with 1 kHz sine  
0% open, 5 seconds  
0% short, 5 seconds  
40%, 0.10 seconds  
70%, 0.01 seconds  
C
C
C
B
2.12  
Reliability  
14  
Nonrecoverable read errors  
Annualized Failure Rate (AFR)  
Contact start-stop cycles  
1 per 10 bits read, max.  
0.68% (nominal power, 25°C ambient temperature)  
50,000 cycles  
(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty cycle)  
Warranty  
5 years on distribution units.  
To determine the warranty for a specific drive, use a web browser to access the fol-  
lowing web page:  
From this page, click on the “Verify Your Warranty” link. You will be asked to provide  
the drive serial number, model number (or part number) and country of purchase.  
The system will display the warranty information for your drive.  
Preventive maintenance  
None required.  
2.13  
Agency certification  
2.13.1  
Safety certification  
The drives are recognized in accordance with UL 1950 and CSA C22.2 (950) and meet all applicable sections  
of IEC950 and EN 60950 as tested by TUV North America.  
DB35.3 Series PATA Product Manual, Rev. C  
17  
                                                             
2.13.2  
Electromagnetic compatibility  
Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Elec-  
tromagnetic Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product  
standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and  
the immunity levels are defined by EN 55024.  
Seagate uses an independent laboratory to confirm compliance with the EC directives specified in the previous  
paragraph. Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply  
with the directives when used in the test systems, we cannot guarantee that all systems will comply with the  
directives. The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O  
cable (if necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators  
should confirm EMC compliance and provide CE marking for their products.  
Korean RRL  
If these drives have the Korea Ministry of Information and Communication (MIC) logo, they comply with para-  
graph 1 of Article 11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic  
Compatibility (EMC) Framework requirements of the Radio Research Laboratory (RRL) Ministry of Information  
and Communication Republic of Korea.  
These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibil-  
ity (EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a Korean-recog-  
nized lab.  
• EUT name (model numbers): DB35 Series  
• Certificate number: STX-L3510 (B)  
• Trade name or applicant: Seagate Technology  
• Manufacturing date: March 2006  
• Manufacturer/nationality: Singapore and China  
Australian C-Tick (N176)  
If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZS3548  
1995 and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communi-  
cation Authority (ACA).  
2.13.3  
FCC verification  
These drives are intended to be contained solely within a personal computer or similar enclosure (not attached  
as an external device). As such, each drive is considered to be a subassembly even when it is individually mar-  
keted to the customer. As a subassembly, no Federal Communications Commission verification or certification  
of the device is required.  
Seagate Technology LLC has tested this device in enclosures as described above to ensure that the total  
assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the limits for a Class B  
computing device, pursuant to Subpart J, Part 15 of the FCC rules. Operation with noncertified assemblies is  
likely to result in interference to radio and television reception.  
Radio and television interference. This equipment generates and uses radio frequency energy and if not  
installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio  
and television reception.  
This equipment is designed to provide reasonable protection against such interference in a residential installa-  
tion. However, there is no guarantee that interference will not occur in a particular installation. If this equipment  
does cause interference to radio or television, which can be determined by turning the equipment on and off,  
you are encouraged to try one or more of the following corrective measures:  
• Reorient the receiving antenna.  
18  
DB35.3 Series PATA Product Manual, Rev. C  
                                 
• Move the device to one side or the other of the radio or TV.  
• Move the device farther away from the radio or TV.  
• Plug the computer into a different outlet so that the receiver and computer are on different branch outlets.  
If necessary, you should consult your dealer or an experienced radio/television technician for additional sug-  
gestions. You may find helpful the following booklet prepared by the Federal Communications Commission:  
How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the Super-  
intendent of Documents, U.S. Government Printing Office, Washington, DC 20402. Refer to publication num-  
ber 004-000-00345-4.  
2.14  
Environmental protection  
Seagate designs its products to meet environmental protection requirements worldwide, including regulations  
restricting certain chemical substances.  
2.14.1  
European Union Restriction of Hazardous Substances (RoHS)  
The European Union Restriction of Hazardous Substances (RoHS) Directive restricts the presence of chemical  
substances, including Lead (Pb), in electronic products effective July 2006. Although amendments to the  
Euro-pean Union’s Restriction of Hazardous Substances (RoHS) Directive have not been finalized, to the best  
of our knowledge the disc drives documented in this publication will comply with the final RoHS Directive  
require-ments.  
A number of parts and materials in Seagate products are procured from external suppliers. We rely on the  
rep-resentations of our suppliers regarding the presence of RoHS substances in these parts and materials. Our  
supplier contracts require compliance with our chemical substance restrictions, and our suppliers document  
their compliance with our requirements by providing material content declarations for all parts and materials for  
the disc drives documented in this publication. Current supplier declarations include disclosure of the inclusion  
of any RoHS-regulated substance in such parts or materials.  
Seagate also has internal systems in place to ensure ongoing compliance with the RoHS Directive and all laws  
and regulations which restrict chemical content in electronic products. These systems include standard  
operat-ing procedures that ensure that restricted substances are not utilized in our manufacturing operations,  
labora-tory analytical validation testing, and an internal auditing process to ensure that all standard operating  
procedures are complied with.  
2.15  
Corrosive environment  
Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to  
light industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM  
B845. However, this accelerated testing cannot duplicate every potential application environment. Users  
should use caution exposing any electronic components to uncontrolled chemical pollutants and corrosive  
chemicals as electronic drive component reliability can be affected by the installation environment. The silver,  
copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, chlo-  
ride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components  
should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or  
exposed to an ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulca-  
nized rubber, that can outgas corrosive compounds should be minimized or eliminated. The useful life of any  
electronic equipment may be extended by replacing materials near circuitry with sulfide-free alternatives.  
DB35.3 Series PATA Product Manual, Rev. C  
19  
         
20  
DB35.3 Series PATA Product Manual, Rev. C  
3.0  
Configuring and mounting the drive  
This section contains the specifications and instructions for configuring and mounting the drive.  
3.1  
Handling and static discharge precautions  
After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic dis-  
charge (ESD) hazards. Observe the following standard handling and static-discharge precautions:  
Caution:  
• Before handling the drive, put on a grounded wrist strap, or ground yourself frequently by touching the metal  
chassis of a computer that is plugged into a grounded outlet. Wear a grounded wrist strap throughout the  
entire installation procedure.  
• Handle the drive by its edges or frame only.  
• The drive is extremely fragile—handle it with care. Do not press down on the drive top cover.  
• Always rest the drive on a padded, antistatic surface until you mount it in the computer.  
• Do not touch the connector pins or the printed circuit board.  
• Do not remove the factory-installed labels from the drive or cover them with additional labels. Removal voids  
the warranty. Some factory-installed labels contain information needed to service the drive. Other labels are  
used to seal out dirt and contamination.  
DB35.3 Series PATA Product Manual, Rev. C  
21  
           
3.2  
Breather filter hole precautions  
This section contains information regarding the precautions which should be taken regarding the breather filter  
hole in Seagate hard disc drives. Proper precautions should be taken to ensure full functionality and prevent  
possible damage to the drive.  
Breather hole  
Do not cover or seal  
this hole.  
Figure 3  
Breather filter hole location  
Caution: Do not cover, seal, or insert any object into this hole.  
This hole has two purposes:  
To allow condensation inside the hard disc to escape  
To allow air pressure inside the hard disc to equalize with ambient pressure  
Note. If this hole is covered, sealed, or penetrated by any object, the drive reliability may be compromised  
and could lead to permanent damage. Covering or sealing this hole voids the warranty.  
22  
DB35.3 Series PATA Product Manual, Rev. C  
     
3.3  
Jumper settings  
3.3.1  
Master/slave configuration  
The options jumper block shown in Figure 4 is used to configure the drive for operation. It is the 8-pin dual  
header between the interface connector and the power connector. Use the following settings to configure the  
drive as a master or a slave.  
Master or single drive. The drive is configured at the factory for a master or single-drive operation with a  
jumper set on pins 7 and 8.  
Drive as slave. Remove all jumpers.  
Drive as master with a non-ATA-compatible slave.  
Use this jumper setting only if the drive does not work as a master with no jumpers installed.  
Options jumper block  
*Master or single drive  
Drive is slave  
Master with non ATA-  
compatible slave  
*Cable select  
7
5
6
3
4
1
2
8
Figure 4  
Master/slave jumper settings  
3.3.2  
Cable-select option  
Computers that use cable select determine the master and slave drives by selecting or deselecting pin 28,  
CSEL, on the interface bus. Master and slave drives are determined by their physical position on the cable. To  
enable cable select, set a jumper on pins 5 and 6 as shown in Figure 4. Refer to your computer manual to  
determine whether your computer supports this option.  
DB35.3 Series PATA Product Manual, Rev. C  
23  
                   
3.3.3  
Ultra ATA/100 cable  
An 80-conductor 40-pin cable is required to run Ultra DMA mode 3, mode 4, and mode 5. This cable uses  
even-numbered conductors connected to the ground pins to improve signal integrity.  
Note.  
If you are using a 40-pin, 80-conductor  
cable, attach the blue connector to the  
motherboard, the black connector to the  
master drive, and the gray connector  
to the slave.  
Master  
Slave  
Pin 1  
Computer  
Motherboard  
Figure 5  
Ultra ATA cable connectors  
Note. The drive supports both host and drive cable detection. The host detects the 80-conductor cable by  
sampling pin 34, CBLID–, on the interface bus. The drive detects the 80-conductor cable by sens-  
ing a capacitor at the host side through the CBLID– signal. The result is reported in a Fast Rise  
Detected bit (bit 13 of word 93 in the Identify drive parameter block).  
3.4  
Drive mounting  
You can mount the drive in any orientation using four screws in the side-mounting holes or four screws in the  
bottom-mounting holes. See Figure 6 for drive mounting dimensions. Follow these important mounting precau-  
tions when mounting the drive:  
• Allow a minimum clearance of 0.030 inches (0.76 mm) around the entire perimeter of the drive for cooling.  
• Use only 6-32 UNC mounting screws.  
• Do not overtighten the mounting screws (maximum torque: 6 inch-lb.).  
• Do not use a drive interface cable that is more than 18 inches long.  
24  
DB35.3 Series PATA Product Manual, Rev. C  
                     
Notes:  
1. Dimensions are shown in inches (mm).  
2 Dimensions per SFF-8301 specification.  
0.228  
(5.79)  
0.178  
(4.27)  
2.23  
(56.56)  
1.028 max  
(26.11)  
2.83  
(71.80)  
3 x 0.25 0.010  
(6.35 0.037)  
both sides  
3.71  
(94.35)  
1.122 0.02  
(28.5 0.51)  
2
1.625 0.020  
(41.28 0.51)  
1.638 0.01  
(41.61 0.25)  
5.787 max  
(146.99)  
1.75 0.01  
(44.45 0.25)  
4.0 0.01  
(101.60 0.25)  
4 x 6-32 UNC-2B  
0.150 (3.81) max. fastener  
penetration. 3 threads  
minimum engagement.  
3 x 6-32 UNC-2B  
0.1240 0.01  
(3.18 0.25)  
0.150 (3.81) max. fastener  
penetration both sides. 3 threads  
minimum engagement.  
Recommended  
Recommended  
case temperature  
measurement location  
case temperature  
measurement location  
3.750 0.01  
(95.25 0.25)  
4.0 0.01  
(101.60 0.25)  
Figure 6  
Mounting dimensions—top, side and end view  
DB35.3 Series PATA Product Manual, Rev. C  
25  
 
26  
DB35.3 Series PATA Product Manual, Rev. C  
4.0  
ATA interface  
These drives use the industry-standard ATA task file interface that supports 16-bit data transfers. It supports  
ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–5. The  
drive also supports the use of the IORDY signal to provide reliable high-speed data transfers.  
You can use a daisy-chain cable to connect two drives to a single AT host bus. For detailed information about  
the ATA interface, refer to the draft of AT Attachment with Packet Interface Extension (ATA/ATAPI-7), NCITS  
T13 1410D, subsequently referred to as the Draft ATA-7 Standard.  
4.1  
ATA interface signals and connector pins  
Figure 7 on page 27 summarizes the signals on the ATA interface connector that the drive supports. For a  
detailed description of these signals, refer to the Draft ATA-7 Standard.  
Drive pin #  
Host pin # and signal description  
Signal name  
1
2
Reset  
1
2
3
4
5
6
7
8
9
Hardware Reset  
Ground  
Ground  
3
DD7  
Host Data Bus Bit 7  
Host Data Bus Bit 8  
Host Data Bus Bit 6  
Host Data Bus Bit 9  
Host Data Bus Bit 5  
Host Data Bus Bit 10  
Host Data Bus Bit 4  
4
DD8  
5
DD6  
6
DD9  
7
DD5  
8
DD10  
DD4  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
DD11  
DD3  
10 Host Data Bus Bit 11  
11 Host Data Bus Bit 3  
12 Host Data Bus Bit 12  
13 Host Data Bus Bit 2  
14 Host Data Bus Bit 13  
15 Host Data Bus Bit 1  
16 Host Data Bus Bit 14  
17 Host Data Bus Bit 0  
18 Device Data (15:0)  
19 Ground  
DD12  
DD2  
DD13  
DD1  
DD14  
DD0  
DD15  
Ground  
(removed)  
DMARQ  
Ground  
DIOW–  
STOP  
Ground  
(No Pin)  
20  
21 DMA Request  
22 Ground  
23 Device I/O Write:  
Stop Ultra DMA Burst  
24 Ground  
24  
25  
DIOR  
25 Device I/O Read:  
Host Ultra DMA Ready:  
Host Ultra DMA Data Strobe  
26 Ground  
27 I/O Channel Ready  
Device Ultra DMA Ready  
Device Ulta DMA Data Strobe  
28 Cable Select  
29 DMA Acknowledge  
30 Ground  
31 Device Interrupt  
32 Reserved  
33 Host Address Bus Bit 1  
34 Passed Diagnostics  
Cable Assembly Type Identifier  
35 Device Address (2:0)  
36 Device Address (2:0)  
37 Chip Select (1:0)  
38 Chip Select (1:0)  
39 Drive Active/Slave Present  
40 Ground  
HDMARDY  
HSTROBE  
Ground  
26  
27  
IORDY  
DDMARDY–  
DSTROBE  
CSEL  
28  
29  
30  
31  
32  
33  
34  
DMACK  
Ground  
INTRQ  
IOCS16  
DA1  
PDIAG  
CBLID–  
35  
36  
37  
38  
39  
40  
DA0  
DA2  
CS0  
CS1  
DASP  
Ground  
Pins 28, 34 and 39 are used for master-slave communication (details shown below).  
Drive 1 (slave)  
Drive 0 (master)  
Host  
28  
34  
39  
28  
34  
39  
CSEL  
28  
34  
39  
PDIAG  
DASP–  
Figure 7  
I/O pins and supported ATA signals  
DB35.3 Series PATA Product Manual, Rev. C  
27  
                     
4.1.1  
Supported ATA commands  
The following table lists ATA-standard commands that the drive supports. For a detailed description of the ATA  
commands, refer to the Draft ATA-7 Standard. See “S.M.A.R.T. commands” on page 34 for details and sub-  
commands used in the S.M.A.R.T. implementation.  
Table 6:  
Supported ATA commands  
Command name  
Command code (in hex)  
98 or E5  
Check Power Mode  
Device Configuration Freeze Lock  
Device Configuration Identify  
Device Configuration Restore  
Device Configuration Set  
Device Reset  
H
H
B1 / C1  
H
H
B1 / C2  
H
H
H
H
B1 / C0  
H
B1 / C3  
H
08  
92  
90  
H
H
H
Download Microcode  
Execute Device Diagnostics  
Flush Cache  
E7  
H
Flush Cache Extended  
Format Track  
EA  
H
50  
H
Identify Device  
EC  
H
Idle  
97 or E3  
H
H
Idle Immediate  
95 or E1  
H
H
Initialize Device Parameters  
Read Buffer  
91  
H
E4  
H
Read DMA  
C8  
H
Read DMA Extended  
Read DMA Without Retries  
Read Log Ext  
25  
H
C9  
H
H
2F  
Read Multiple  
C4  
H
Read Multiple Extended  
Read Native Max Address  
Read Native Max Address Extended  
Read Sectors  
29  
H
F8  
H
H
H
H
H
H
H
H
H
27  
20  
24  
21  
40  
42  
41  
10  
Read Sectors Extended  
Read Sectors Without Retries  
Read Verify Sectors  
Read Verify Sectors Extended  
Read Verify Sectors Without Retries  
Recalibrate  
Security Disable Password  
Security Erase Prepare  
F6  
F3  
H
H
28  
DB35.3 Series PATA Product Manual, Rev. C  
                                                                       
Command name  
Security Erase Unit  
Security Freeze  
Security Set Password  
Security Unlock  
Seek  
Command code (in hex)  
F4  
F5  
F1  
F2  
H
H
H
H
H
70  
Set Features  
EF  
H
Set Max Address  
F9  
H
Note: Individual Set Max Address  
commands are identified by the value  
placed in the Set Max Features regis-  
ter as defined to the right.  
Address:  
Password:  
Lock:  
00  
01  
02  
03  
04  
H
H
H
H
H
Unlock:  
Freeze Lock:  
Set Max Address Extended  
Set Multiple Mode  
37  
H
C6  
H
Sleep  
99 or E6  
H
H
S.M.A.R.T. Disable Operations  
S.M.A.R.T. Enable/Disable Autosave  
S.M.A.R.T. Enable Operations  
S.M.A.R.T. Execute Offline  
S.M.A.R.T. Read Attribute Thresholds  
S.M.A.R.T. Read Data  
S.M.A.R.T. Read Log Sector  
S.M.A.R.T. Return Status  
S.M.A.R.T. Save Attribute Values  
S.M.A.R.T. Write Log Sector  
Standby  
B0 / D9  
H
H
B0 / D2  
H
H
H
H
H
H
H
B0 / D8  
H
B0 / D4  
H
B0 / D1  
H
B0 / D0  
H
B0 / D5  
H
B0 / DA  
H
H
H
H
B0 / D3  
H
B0 / D6  
H
96 or E2  
H
H
Standby Immediate  
94 or E0  
H
H
Write Buffer  
E8  
H
Write DMA  
CA  
H
H
H
Write DMA Extended  
Write DMA Without Retries  
Write Log Extended  
35  
H
CB  
3F  
H
Write Multiple  
C5  
Write Multiple Extended  
Write Sectors  
39  
30  
31  
34  
H
H
H
H
Write Sectors Without Retries  
Write Sectors Extended  
DB35.3 Series PATA Product Manual, Rev. C  
29  
                                                               
4.1.2  
Identify Device command  
The Identify Device command (command code EC ) transfers information about the drive to the host following  
H
power up. The data is organized as a single 512-byte block of data, whose contents are shown in the Table 6  
on page 28. All reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or  
vary with the state of the drive. See Section 2.0 on page 3 for default parameter settings.  
The following commands contain drive-specific features that may not be included in the Draft ATA-7 Standard.  
Word  
Description  
Value  
Configuration information:  
• Bit 15: 0 = ATA; 1 = ATAPI  
• Bit 7: removable media  
• Bit 6: removable controller  
• Bit 0: reserved  
0C5A  
H
0
1
Number of logical cylinders  
16,383  
2
ATA-reserved  
0000  
16  
H
3
Number of logical heads  
4
Retired  
0000  
0000  
H
H
5
Retired  
6
Number of logical sectors per logical track: 63  
Retired  
003F  
H
H
7–9  
10–19  
20  
0000  
Serial number: (20 ASCII characters, 0000 = none)  
ASCII  
H
Retired  
Retired  
Obsolete  
0000  
0400  
0000  
x.xx  
H
H
H
21  
22  
23–26  
Firmware revision (8 ASCII character string, padded with blanks to  
end of string)  
27–46  
47  
Drive model number  
(40 ASCII characters, padded with blanks to end of string)  
ST3xxxxxACE  
(Bits 7–0) Maximum sectors per interrupt on Read multiple and  
Write multiple (16)  
8010  
0000  
H
48  
Reserved  
H
49  
Standard Standby timer, IORDY supported and may be disabled  
ATA-reserved  
2F00  
H
H
H
H
H
50  
0000  
0200  
0200  
0007  
51  
PIO data-transfer cycle timing mode  
Retired  
52  
53  
Words 54–58, 64–70 and 88 are valid  
Number of current logical cylinders  
Number of current logical heads  
Number of current logical sectors per logical track  
Current capacity in sectors  
54  
xxxx  
xxxx  
xxxx  
xxxx  
xxxx  
H
55  
H
H
H
H
56  
57–58  
59  
Number of sectors transferred during a Read Multiple or Write Multi-  
ple command  
30  
DB35.3 Series PATA Product Manual, Rev. C  
   
Word  
Description  
Value  
60–61  
Total number of user-addressable LBA sectors available  
(see Section 2.2 for related information)  
0FFFFFFFh*  
*Note: The maximum value allowed in this field is: 0FFFFFFFh  
(268,435,455 sectors, 137 Gbytes). Drives with capacities over 137  
Gbytes will have 0FFFFFFFh in this field and the actual number of  
user-addressable LBAs specified in words 100-103. This is required  
for drives that support the 48-bit addressing feature.  
62  
63  
Retired  
0000  
H
Multiword DMA active and modes supported  
(see note following this table)  
xx07  
H
64  
65  
66  
Advanced PIO modes supported (modes 3 and 4 supported)  
Minimum multiword DMA transfer cycle time per word (120 nsec)  
0003  
0078  
0078  
H
H
H
Recommended multiword DMA transfer cycle time per word (120  
nsec)  
67  
Minimum PIO cycle time without IORDY flow control (240 nsec)  
Minimum PIO cycle time with IORDY flow control (120 nsec)  
ATA-reserved  
00F0  
H
H
H
H
68  
0078  
0000  
0000  
69–74  
75  
Queue depth  
76–79  
80  
SATA-specific  
xxxx  
H
Major version number  
007E  
H
H
81  
Minor version number  
0000  
82  
Command sets supported  
346B  
H
83  
Command sets supported  
7D01  
H
84  
Command sets support extension  
Command sets enabled  
4003  
H
85  
34xx  
H
H
86  
Command sets enabled  
3xxx  
87  
Command sets enable extension  
4003  
H
88  
Ultra DMA support and current mode  
(see note following this table)  
xx3F  
H
89  
Security erase time  
0000  
0000  
H
H
90  
Enhanced security erase time  
Master password revision code  
Hardware reset value (see description following this table)  
ATA-reserved  
92  
FFFE  
H
93  
xxxx  
H
95–99  
100–103  
0000  
H
Total number of user-addressable LBA sectors available (see Sec-  
tion 2.2 for related information). These words are required for drives  
that support the 48-bit addressing feature. Maximum value:  
0000FFFFFFFFFFFFh.  
ST3750840ACE = 1,465,149,168  
ST3500830ACE = 976,773,168  
ST3400820ACE = 781,422,768  
ST3320820ACE = 625,142,448  
ST3300820ACE = 586,072,368  
ST3250820ACE = 488,397,168  
104–127  
128  
ATA-reserved  
0000  
H
H
Security status  
Seagate-reserved  
0001  
129–159  
xxxx  
H
DB35.3 Series PATA Product Manual, Rev. C  
31  
Word  
160–254  
255  
Description  
ATA-reserved  
Integrity word  
Value  
0000  
xxA5  
H
H
Note. Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not supported  
Note. See the bit descriptions below for words 63, 88, and 93 of the Identify Drive data:  
Description (if bit is set to 1)  
Bit  
0
Word 63  
Multiword DMA mode 0 is supported.  
Multiword DMA mode 1 is supported.  
Multiword DMA mode 2 is supported.  
Multiword DMA mode 0 is currently active.  
Multiword DMA mode 1 is currently active.  
Multiword DMA mode 2 is currently active.  
Word 88  
1
2
8
9
10  
Bit  
0
Ultra DMA mode 0 is supported.  
Ultra DMA mode 1 is supported.  
Ultra DMA mode 2 is supported.  
Ultra DMA mode 3 is supported.  
Ultra DMA mode 4 is supported.  
Ultra DMA mode 5 is supported.  
Ultra DMA mode 0 is currently active.  
Ultra DMA mode 1 is currently active.  
Ultra DMA mode 2 is currently active.  
Ultra DMA mode 3 is currently active.  
Ultra DMA mode 4 is currently active.  
Ultra DMA mode 5 is currently active.  
Word 93  
1
2
3
4
5
8
9
10  
11  
12  
13  
Bit  
13  
1 = 80-conductor cable detected, CBLID above VIH  
0 = 40-conductor cable detected, CBLID below VIL  
32  
DB35.3 Series PATA Product Manual, Rev. C  
4.1.3  
Set Features command  
This command controls the implementation of various features that the drive supports. When the drive receives  
this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an inter-  
rupt. If the value in the register does not represent a feature that the drive supports, the command is aborted.  
Power-on default has the read look-ahead and write caching features enabled. The acceptable values for the  
Features register are defined as follows:  
02  
03  
Enable write cache (default).  
H
H
Set transfer mode (based on value in Sector Count register).  
Sector Count register values:  
00  
01  
08  
09  
Set PIO mode to default (PIO mode 2).  
Set PIO mode to default and disable IORDY (PIO mode 2).  
PIO mode 0  
H
H
H
H
PIO mode 1  
0A  
PIO mode 2  
H
0B  
PIO mode 3  
H
0C  
PIO mode 4 (default)  
Multiword DMA mode 0  
Multiword DMA mode 1  
Multiword DMA mode 2  
Ultra DMA mode 0  
H
20  
21  
22  
40  
41  
42  
43  
44  
45  
H
H
H
H
H
H
H
H
H
Ultra DMA mode 1  
Ultra DMA mode 2  
Ultra DMA mode 3  
Ultra DMA mode 4  
Ultra DMA mode 5  
55  
82  
Disable read look-ahead (read cache) feature.  
Disable write cache.  
H
H
AA  
Enable read look-ahead (read cache) feature (default).  
Report full capacity available  
H
F1  
H
Note. At power-on, or after a hardware or software reset, the default values of the features are as indi-  
cated above.  
DB35.3 Series PATA Product Manual, Rev. C  
33  
       
4.1.4  
S.M.A.R.T. commands  
S.M.A.R.T. provides near-term failure prediction for disc drives. When S.M.A.R.T. is enabled, the drive moni-  
tors predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines  
that a failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable.  
S.M.A.R.T. predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T.  
commands and implementation, see the Draft ATA-7 Standard.  
SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4 ) that elimi-  
H
nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:  
This drive is shipped with S.M.A.R.T. features disabled. You must have a recent BIOS or software package that  
supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command codes that the  
drive uses.  
Codeinfeatures  
register  
S.M.A.R.T. command  
D0  
D2  
D3  
D4  
D5  
D6  
D8  
D9  
S.M.A.R.T. Read Data  
H
H
H
H
H
H
H
H
S.M.A.R.T. Enable/Disable Attribute Autosave  
S.M.A.R.T. Save Attribute Values  
S.M.A.R.T. Execute Off-line Immediate (runs DST)  
S.M.A.R.T. Read Log Sector  
S.M.A.R.T. Write Log Sector  
S.M.A.R.T. Enable Operations  
S.M.A.R.T. Disable Operations  
S.M.A.R.T. Return Status  
DA  
H
Note. If an appropriate code is not written to the Features Register, the command is aborted and 0x04  
(abort) is written to the Error register.  
34  
DB35.3 Series PATA Product Manual, Rev. C  
             
5.0  
Seagate Technology support services  
Online services  
Internet  
www.seagate.com for information about Seagate products and services. Worldwide support is available 24  
hours daily by e-mail for your questions.  
mySeagate  
my.seagate.com is the industry’s first Web portal designed specifically for OEMs and distributors. It provides  
self-service access to critical applications, personalized content and the tools that allow our partners to man-  
age their Seagate account functions. Submit pricing requests, orders and returns through a single, password-  
protected Web interface—anytime, anywhere in the world.  
spp.seagate.com  
spp.seagate.com supports Seagate resellers with product information, program benefits and sales tools. You  
may register for customized communications that are not available on the web. These communications contain  
product launch, EOL, pricing, promotions and other channel-related information. To learn more about the ben-  
efits or to register, go to spp.seagate.com, any time, from anywhere in the world.  
Seagate Service Centers  
Presales Support  
Our Presales Support staff can help you determine which Seagate products are best suited for your specific  
application or computer system, as well as product availability and compatibility.  
Technical Support  
Seagate technical support is available to assist you online at support.seagate.com or through one of our call  
centers. Have your system configuration information and your “ST” model number available.  
SeaTDD(+1-405-324-3655) is a telecommunications device for the deaf (TDD). You can send questions or  
comments 24 hours daily and exchange messages with a technical support specialist during normal business  
hours for the call center in your region.  
Customer Service Operations  
Warranty Service  
Seagate offers worldwide customer support for Seagate drives. Seagate distributors, OEMs and other direct  
customers should contact their Seagate Customer Service Operations (CSO) representative for warranty-  
related issues. Resellers or end users of drive products should contact their place of purchase or one of the  
Seagate CSO warranty centers for assistance. Have your drive’s “ST” model number and serial number avail-  
able.  
DB35.3 Series PATA Product Manual, Rev. C  
35  
   
Data Recovery Services  
Seagate offers data recovery services for all formats and all brands of storage media. Our Data Recovery Ser-  
vices labs are currently located in North America. To speak with a case management representative, call  
1-800-475-0143. Additional information, including an online request form and data loss prevention resources,  
Authorized Service Centers  
In some locations outside the US, you can contact an Authorized Service Center for service.  
USA/Canada/Latin America support services  
Seagate Service Centers  
Presales Support  
Call center  
Americas  
Toll-free  
Direct dial  
FAX  
+1-405-324-4704  
1-877-271-32851  
+1-405-324-47301  
Technical Support  
Call center  
Americas  
Toll-free  
Direct dial  
FAX  
+1-405-324-3339  
1-800-SEAGATE2  
+1-405-324-47002  
Customer Service Operations  
Warranty Service  
Call center  
USA, Canada, Mexico and  
Latin America  
Toll-free  
Direct dial  
FAX / E-mail  
+1-956-664-4725  
1-800-468-34723  
Brazil  
Jabil Industrial Do Brasil  
+55-11-4191-4761  
+55-11-4191-5084  
LTDA4  
Data Recovery Services  
Call center  
Toll-free  
Direct dial  
FAX  
USA, Canada,  
and Mexico  
1-800-475-01435  
+1-905-474-2162  
1-800-475-0158  
+1-905-474-2459  
1
Hours of operation are 8:00 A.M. to 7:00 P.M., Monday through Friday (Central time).  
Hours of operation are 8:00 A.M. to 8:00 P.M., Monday through Friday (Central time).  
Hours of operation are 8:00 A.M. to 5:00 P.M., Monday through Friday (Central time).  
Authorized Service Center  
2
3
4
5
Hours of operation are 8:00 A.M. to 8:00 P.M., Monday through Friday, and 9:00 A.M. to 5:00 P.M., Saturday (Eastern time).  
36  
DB35.3 Series PATA Product Manual, Rev. C  
European support services  
For presales and technical support in Europe, dial the Seagate Service Center toll-free number for your spe-  
cific location. If your location is not listed here, dial our presales and technical support call center at +1-405-  
324-4714 from 8:00 A.M. to 11:45 A.M. and 1:00 P.M. to 5:00 P.M. (Central Europe time) Monday through Friday.  
The presales and technical support call center is located in Oklahoma City, USA.  
For European warranty service, dial the toll-free number for your specific location. If your location is not listed  
here, dial our European CSO warranty center at +31-20-316-7222 from 8:30 A.M. to 5:00 P.M. (Central Europe  
time) Monday through Friday. The CSO warranty center is located in Amsterdam, The Netherlands.  
Seagate Service Centers  
Toll-free support numbers  
Call center  
Austria  
Belgium  
Denmark  
France  
Germany  
Ireland  
Italy  
Presales and Technical Support  
Warranty Service  
00 800-47324289  
00 800-47324289  
00 800-47324289  
00 800-47324289  
00 800-47324289  
00 800-47324289  
00 800-47324289  
00 800-47324289  
00 800-47324289  
00 800-311 12 38  
00 800-47324289  
00 800-47324289  
00 800-47324289  
00 800-31 92 91 40  
00 800-47324289  
00 800-47324283 (00 800-4SEAGATE)  
00 800-47324283  
00 800-47324283  
00 800-47324283  
00 800-47324283  
00 800-47324283  
00 800-47324283  
00 800-47324283  
00 800-311 12 38  
00 800-47324283  
00 800-47324283  
00 800-47324283  
00 800-31 92 91 40  
00 800-47324283  
Netherlands  
Norway  
Poland  
Spain  
Sweden  
Switzerland  
Turkey  
United Kingdom  
FAX services—All Europe (toll call)  
Technical Support  
Warranty Service  
+1-405-324-3339  
+31-20-653-3513  
Africa/Middle East support services  
For presales and technical support in Africa and the Middle East, dial our presales and technical support call  
center at +1-405-324-4714 from 8:00 A.M. to 11:45 A.M. and 1:00 P.M. to 5:00 P.M. (Central Europe time) Mon-  
day through Friday. The presales and technical support call center is located in Oklahoma City, USA.  
For warranty service in Africa and the Middle East, dial our European CSO warranty center at +31-20-316-  
7222 from 8:30 A.M. to 5:00 P.M. (Central Europe time) Monday through Friday, or send a FAX to +31-20-653-  
3513. The CSO warranty center is located in Amsterdam, The Netherlands.  
DB35.3 Series PATA Product Manual, Rev. C  
37  
Asia/Pacific support services  
For Asia/Pacific presales and technical support, dial the toll-free number for your specific location. The Asia/  
Pacific toll-free numbers are available from 6:00 A.M. to 10:45 A.M. and 12:00 P.M. to 6:00 P.M. (Australian East-  
ern time) Monday through Friday, except as noted. If your location is not listed here, direct dial one of our tech-  
nical support locations.  
Warranty service is available from 9:00 A.M. to 5:00 P.M., Monday through Friday. Warranty service for Australia  
is available from 10:00 A.M. to 7:00 P.M., April through October, and from 11:00 A.M. to 8:00 P.M. November  
through March (Australian Eastern time) Monday through Friday.  
Seagate Service Centers  
Call center  
Australia  
China (Mandarin)  
Hong Kong  
Toll-free  
1800-14-7201  
800-810-9668  
800-90-0474  
Direct dial  
+86-10-6225-5336  
FAX  
1, 4  
1, 4  
Hong Kong (Cantonese)  
001-800-0830-1730  
1-800-180-1104  
001-803-1-003-2165  
0034 800 400 554  
007 98 8521 7635  
1-800-80-2335  
0800-443988  
800-1101-150  
00-800-0830-1730  
001-800-11-0032165  
2, 4  
India  
Indonesia  
3, 4  
Japan  
Korea  
3, 4  
Malaysia  
New Zealand  
Singapore  
Taiwan (Mandarin)  
Thailand  
+65-6488-7525  
1, 4  
Customer Service Operations  
Warranty Service  
Call center  
Asia/Pacific  
Australia  
Toll-free  
1800-12-9277  
Direct dial  
+65-6485-3595  
FAX  
+65-6485-4860  
4
India  
+91-44-42015000  
+91-44-42015184  
1
Hours of operation are 8:30 A.M. to 5:30 P.M., Monday through Friday (Australian Western time).  
Hours of operation are 9:00 A.M. to 6:00 P.M., Monday through Saturday.  
Hours of operation are 9:30 A.M. to 6:30 P.M., Monday through Friday.  
Authorized Service Center  
2
3
4
38  
DB35.3 Series PATA Product Manual, Rev. C  
Device Configuration Set 28  
Device Reset 28  
diagnostic software 1, 34  
dissipation 11  
Index  
A
Download Microcode 28  
drive diagnostics 10  
drive monitoring 1  
drive self-test 1, 34  
DST 34  
acoustics 16  
Active mode 13  
agency certification (regulatory) 17  
altitude 14  
ambient conditions 3  
ambient temperature 10, 14  
areal density 1, 9  
E
ATA interface 27  
electrical fast transient 17  
electromagnetic compatibility 18  
Electromagnetic Compatibility Directive 18  
electromagnetic immunity 17  
electrostatic discharge 17  
EMC compliance 18  
ATA-standard commands 28  
Australian C-Tick 18  
autodetection 1  
average seek time 10  
B
BPI 9  
EN 60950 17  
enclosures 18  
environmental specifications 14  
EPRML 1, 9  
error-correction algorithms 1  
errors 17  
breather filter hole precautions 22  
burst 1  
C
European Union 18  
Execute Device Diagnostics 28  
cable 24  
cable select 1  
cable-select option 23  
cache 1  
case temperature 14  
CE mark 18  
certification 17  
Check Power Mode 28  
commands 28  
F
failure prediction 34  
FCC verification 18  
Features register 33  
Flush Cache 28  
Flush Cache Extended 28  
Format Track 28  
compliance 18  
formatted capacity 8  
frequency 17  
conducted noise 12  
conducted RF immunity 17  
configuring the drive 21  
connector pins 27  
connectors 24  
G
guaranteed sectors 8  
contact start-stop cycles 17  
Corrosive environment 19  
CSA C22.2 (950) 17  
CSEL 23  
C-Tick 18  
current profile 12  
cycles 17  
H
handling 21  
heads 1  
height 9  
humidity 14  
I
D
I/O data-transfer rate 9  
Identify Device 28  
Identify Device command 30  
Idle 28  
Idle and Standby timers 13  
Idle Immediate 28  
Idle mode 13  
data-transfer rates 1  
DC power 10  
density 9  
Device Configuration Freeze Lock 28  
Device Configuration Identify 28  
Device Configuration Restore 28  
DB35.3 Series PATA Product Manual, Rev. C  
39  
Idle mode power 10  
IEC950 17  
power-management modes 13  
Power-on to Ready 10  
Information Technology Equipment 18  
Initialize Device Parameters 28  
interface 9, 27  
precautions 24  
preventive maintenance 17  
programmable power management 13  
interface signals 27  
interference 18  
internal data-transfer rate OD 9  
ISO document 7779 16  
R
radiated RF immunity 17  
radio and television interference 18  
radio frequency 17  
random track location 11  
Read Buffer 28  
J
jumper settings 23  
Read DMA 28  
Read DMA Extended 28  
Read DMA without Retries 28  
read errors 17  
K
Korean RRL 18  
Read Log Ext 28  
L
Read Multiple 1, 28  
Read Multiple Extended 28  
Read Native Max Address 28  
Read Native Max Address Extended 28  
Read Sectors 28  
LBA mode 8  
length 9  
logical geometry 8  
Read Sectors Extended 28  
Read Sectors Without Retries 28  
Read Verify Sectors 28  
Read Verify Sectors Extended 28  
Read Verify Sectors Without Retries 28  
read/write power and current 10  
Recalibrate 28  
recording and interface technology 9  
recording density 9  
recording heads 1  
M
maintenance 17  
master 23  
master/slave 1  
Master/slave configuration 23  
maximum temperature 14  
measurement locations 14  
modes 27  
monitoring 1  
mounting the drive 21, 24  
recording method 9  
register 33  
relative humidity 14  
N
noise 12  
reliability 17  
nominal power 3  
resistance 12  
nonoperating shock 15  
nonoperating vibration 15  
nonrecoverable read errors 17  
resistive load 12  
RoHS 19  
O
S
operating power and current 10  
operating shock 15  
operating vibration 15  
orientation 24  
S.M.A.R.T. commands 34  
S.M.A.R.T. Disable Operations 29  
S.M.A.R.T. drive monitoring 1  
S.M.A.R.T. Enable/Disable Autosave 29  
S.M.A.R.T. Enagle Operations 29  
S.M.A.R.T. Execute Offline 29  
S.M.A.R.T. Read Attribute Thresholds 29  
S.M.A.R.T. Read Data 29  
S.M.A.R.T. Read Log Sector 29  
S.M.A.R.T. Return Status 29  
S.M.A.R.T. Save Attribute Values 29  
S.M.A.R.T. Write Log sector 29  
P
physical characteristics 9  
pins 27  
PIO 27  
power consumption 10  
power management 13  
power specifications 10  
40  
DB35.3 Series PATA Product Manual, Rev. C  
safety certification 17  
screws 24  
Ultra ATA/100 24  
Ultra DMA 24  
SeaTools 1, 34  
sectors 8  
V
Security Disable Password 28  
Security Erase Prepare 28  
Security Erase Unit 29  
Security Freeze 29  
Security Set Password 29  
Security Unlock 29  
Seek 29  
vibration 15  
voltage 13  
voltage dips, interrupts 17  
voltage tolerance 13  
W
seek mode 10  
weight 9  
seek time 10  
servo electronics 11  
Set Features 29  
wet bulb temperature 14  
width 9  
Write Buffer 29  
Set Features command 33  
Set Max Address 29  
Set Max Address Extended 29  
Set Multiple Mode 29  
shock 15  
signals 27  
single-track seeks 10  
slave 23  
Write DMA 29  
Write DMA Extended 29  
Write DMA Without Retries 29  
Write Log Extended 29  
Write Multiple 1, 29  
Write Multiple Extended 29  
Write Sectors 29  
Write Sectors Extended 29  
Write Sectors Without Retries 29  
Sleep 11, 29  
Sleep mode 13  
sound 16  
specifications 3  
spindle speed 9  
Spinup 11  
spinup power 10  
Standby 11, 29  
Standby Immediate 29  
Standby mode 11, 13  
Standby to Ready 10  
start/stop times 10  
start-stop cycles 17  
static-discharge precautions 21  
stop times 10  
subassembly 18  
support services 35  
surge immunity 17  
T
technical support services 35  
temperature 14  
temperature gradient 14  
TGMR 1  
timers 13  
track density 9  
track-to-track seek time 10  
TUV North America 17  
U
UL 1950 17  
DB35.3 Series PATA Product Manual, Rev. C  
41  
42  
DB35.3 Series PATA Product Manual, Rev. C  
Seagate Technology LLC  
920 Disc Drive, Scotts Valley, California 95066-4544, USA  
Publication Number: 100427568, Rev. C, Printed in U.S.A.  

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