AuToMoTIVe & CONTROL
Microcontroller with LIN Transceiver,
5V Regulator, and Watchdog
ATA6602, ATA6603
The ATA6602/ATA6603 are single-package dual-chip circuits for LIN-bus slave and master node applica-
tions. They support highly integrated solutions for in-vehicle LIN networks. The LIN-system-basis-chip
(LIN-SBC) consists of a LIN transceiver, which complies with the LIN specification; a voltage regulator; and
a window watchdog. The second chip used in the ATA6602 and ATA6603 is from Atmel®’s series of AVR®
8-bit microcontrollers with advanced RISC architecture. An ATmega88 microcontroller is used in the
ATA6602, while an ATmega168 is used in the ATA6603. The LIN-SBC and the microcontroller are mounted
in a small QFN48 package. This dual-chip combination makes it possible to develop inexpensive, simple,
yet powerful master and slave nodes for use in LIN-bus systems.
Features
Benefits
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Single-package Fully Integrated AVR 8-bit
Microcontroller with LIN Transceiver, 5V Regula-
tor, and Watchdog
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Small Single-package Solution –
QFN48, 7 mm x 7 mm
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Small PCB Size with Fewer Soldering Inspections
Silent Mode Supplies the Microcontroller in
Sleep Mode Operation for e.g., Switch Scan-
ning or LED Flashing Facilitating a Very Low
Current Consumption
Wake-up Capability via LIN-bus or WAKE Pin
Boosting of the Voltage Regulator’s Current
Capacity Possible with an External NPN Transistor
60V Load Dump Protection at LIN Pin
High ESD Level at LIN-bus Pin and Supply VS Pin
Supported by AVR Development Tools AVR
Studio®, JTAGICE, debugWIRE, and STK®500
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Supply Voltage up to 40V
Operating Voltage from 5V to 18V
Temperature Range for Tcase –40°C to +125°C
Same Features as the Stand-alone AVR
ATmega88/168:
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LIN-capable UART
8-channel 10-bit ADC
8 kByte (ATA6602) or 16 kByte (ATA6603)
Flash Memory for Application Program
512 Byte EEPROM and 1 kByte SRAM
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PD0 PD1 PD7
EN TXD
RXD
Lin Bus
ATA6602/03
VS
ATA6621
Receiver
Filter
LIN
LIN Output Stage
Wake-up Bus Timer Slew Rate Control
Control Unit
TXD
Time-out
Timer
ATmega88/168
Microcontroller
Short-circuit
Standby Mode
Silent Mode
and
Overtemperature
Protection
Wake-up
Timer
GND
Voltage Regulator
Watchdog
WD_OSC
PC6 PD6 ADC7 VDD WAKE VCC TEMP PVCC
Booster
Download from Www.Somanuals.com. All Manuals Search And Download.
PTRIG NTRIG NRES
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