Cypress CY7C1166V18 User Manual

CY7C1166V18, CY7C1177V18

CY7C1168V18, CY7C1170V18

18-Mbit DDR-II+ SRAM 2-Word Burst

Architecture (2.5 Cycle Read Latency)

Features

Functional Description

■ 18 Mbit density (2M x 8, 2M x 9, 1M x 18, 512K x 36)

■ 300 MHz to 400 MHz clock for high bandwidth

■ 2-Word burst for reducing address bus frequency

The CY7C1166V18, CY7C1177V18, CY7C1168V18, and

CY7C1170V18 are 1.8V Synchronous Pipelined SRAMs

equipped with DDR-II+ architecture. The DDR-II+ consists of an

SRAM core with an advanced synchronous peripheral circuitry.

Addresses for read and write are latched on alternate rising

edges of the input (K) clock. Write data is registered on the rising

edges of both K and K. Read data is driven on the rising edges

of K and K. Each address location is associated with two 8-bit

words (CY7C1166V18), or 9-bit words (CY7C1177V18), or 18-bit

words (CY7C1168V18), or 36-bit words (CY7C1170V18) that

burst sequentially into or out of the device.

■ Double Data Rate (DDR) interfaces

(data transferred at 800 MHz) at 400 MHz

■ Read latency of 2.5 clock cycles

■ Two input clocks (K and K) for precise DDR timing

❐ SRAM uses rising edges only

Asynchronous inputs include output impedance matching input

■ Echo clocks (CQ and CQ) simplify data capture in high-speed

systems

(ZQ). Synchronous data outputs (Q, sharing the same physical

pins as the data inputs D) are tightly matched to the two output

echo clocks CQ/CQ, eliminating the need for separately

capturing data from each individual DDR SRAM in the system

design.

■ Data valid pin (QVLD) to indicate valid data on the output

■ Synchronous internally self-timed writes

[1]

■ Core V = 1.8V ± 0.1V; IO V

= 1.4V to V

DDQ

All synchronous inputs pass through input registers controlled by

the K or K input clocks. All data outputs pass through output

registers controlled by the K or K input clocks. Writes are

conducted with on-chip synchronous self-timed write circuitry.

■ HSTL inputs and Variable drive HSTL output buffers

■ Available in 165-Ball FBGA package (13 x 15 x 1.4 mm)

■ Offered in both Pb-free and non Pb-free packages

■ JTAG 1149.1-compatible test access port

■ Delay Lock Loop (DLL) for accurate data placement

Configurations

With Read Cycle Latency of 2.5 cycles:

CY7C1166V18 – 2M x 8

CY7C1177V18 – 2M x 9

CY7C1168V18 – 1M x 18

CY7C1170V18 – 512K x 36

Selection Guide

Description

400 MHz

400

375 MHz

375

333 MHz

333

300 MHz

300

Unit

MHz

Maximum Operating Frequency

Maximum Operating Current

1080

1020

920

850

Note

1. The QDR consortium specification for V

is 1.5V + 0.1V. The Cypress QDR devices exceed the QDR consortium specification and are capable of supporting

DDQ

= 1.4V to V

DDQ

Cypress Semiconductor Corporation

Document Number: 001-06620 Rev. *D

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised March 06, 2008

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CY7C1166V18, CY7C1177V18

CY7C1168V18, CY7C1170V18

Logic Block Diagram (CY7C1168V18)

Write

Reg

Write

Reg

(18:0)

Address

Output

Logic

Control

CLK

Gen.

R/W

DOFF

Read Data Reg.

REF

Reg.

Control

Logic

R/W

[17:0]

BWS

[1:0]

QVLD

Logic Block Diagram (CY7C1170V18)

Write

Reg

Write

Reg

(17:0)

Address

Output

Logic

Control

CLK

Gen.

R/W

DOFF

Read Data Reg.

REF

Reg.

Control

Logic

R/W

[35:0]

BWS

[3:0]

QVLD

Document Number: 001-06620 Rev. *D

Page 3 of 27

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CY7C1166V18, CY7C1177V18

CY7C1168V18, CY7C1170V18

Pin Configurations

165-Ball FBGA (13 x 15 x 1.4 mm) Pinout

CY7C1166V18 (2M x 8)

NC/36M

DQ3

NC/72M

NC/144M

R/W

NWS₁

NC/288M

NWS₀

V_SS

DQ4

V_DDQ

V_SS

V_DD

V_SS

V_DDQ

DQ2

V_DD

V_SS

DQ5

V_DDQ

V_REF

V_DDQ

V_REF

DQ1

DOFF

DQ0

DQ6

V_SS

DQ7

QVLD

TDO

TCK

TMS

TDI

CY7C1177V18 (2M x 9)

NC/144M

BWS₀

NC/36M

DQ3

NC/72M

R/W

NC/288M

V_SS

DQ4

V_DDQ

V_SS

V_DD

V_SS

V_DDQ

DQ2

V_DD

V_SS

DQ5

V_DDQ

V_REF

V_DDQ

V_REF

DQ1

DOFF

DQ0

DQ6

V_SS

DQ7

QVLD

DQ8

TDO

TCK

TMS

TDI

Document Number: 001-06620 Rev. *D

Page 4 of 27

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CY7C1166V18, CY7C1177V18

CY7C1168V18, CY7C1170V18

Pin Configurations (continued)

165-Ball FBGA (13 x 15 x 1.4 mm) Pinout

CY7C1168V18 (1M x 18)

NC/36M

DQ8

NC/72M

NC/144M

R/W

BWS₁

NC/288M

DQ9

DQ7

BWS₀

V_SS

DQ10

V_SS

DQ12

DQ11

V_DDQ

V_SS

V_DD

V_SS

V_DDQ

DQ6

V_DD

V_SS

DQ5

DQ13

V_DDQ

V_REF

V_DDQ

V_REF

DQ4

DOFF

DQ14

DQ3

DQ2

DQ15

V_SS

DQ1

DQ16

DQ17

QVLD

DQ0

TDO

TCK

TMS

TDI

CY7C1170V18 (512K x 36)

NC/72M

NC/144M NC/36M

R/W

BWS₂

BWS₃

BWS₁

BWS₀

DQ27

DQ18

DQ28

DQ19

DQ17

DQ8

DQ7

DQ16

V_SS

DQ29

V_SS

DQ30

DQ31

V_REF

DQ20

DQ21

DQ22

V_DDQ

DQ32

DQ23

DQ24

V_DDQ

V_SS

V_DD

V_SS

V_DDQ

DQ15

DQ6

V_DD

V_SS

DQ5

DQ14

V_DDQ

V_REF

DQ13

DQ12

DOFF

DQ4

DQ3

DQ2

DQ33

DQ35

DQ34

DQ25

DQ26

V_SS

DQ11

DQ1

DQ10

DQ0

QVLD

DQ9

TDO

TCK

TMS

TDI

Document Number: 001-06620 Rev. *D

Page 5 of 27

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CY7C1166V18, CY7C1177V18

CY7C1168V18, CY7C1170V18

Pin Definitions

Pin Name

Pin Description

Input Output- Data Input Output Signals. Inputs are sampled on the rising edge of K and K clocks during valid

Synchronous write operations. These pins drive out the requested data when a read operation is active. Valid data

is driven out on the rising edge of both the K and K clocks during read operations. When read access

is deselected, Q[x:0] are automatically tri-stated.

[x:0]

CY7C1166V18 − DQ

[7:0]

CY7C1177V18 − DQ

[8:0]

CY7C1168V18 − DQ

CY7C1170V18 − DQ

[17:0]

[35:0]

Input-

Synchronous Load. This input is brought LOW when a bus cycle sequence is to be defined. This

Synchronous definition includes address and read/write direction. All transactions operate on a burst of two data.

LD must meet the setup and hold times around edge of K. LD must meet the setup and hold times

around edge of K.

Input-

Synchronous and K clocks during write operations. It is used to select the nibble that is written into the device

NWS controls D and NWS controls D

Nibble Write Select 0, 1 − Active LOW.(CY7C1166V18 Only) Sampled on the rising edge of the K

NWS , NWS

[7:4]

[3:0]

All the Nibble Write Selects are sampled on the same edge as the data. Deselecting a Nibble Write

Select ignores the corresponding nibble of data and not written into the device.

BWS BWS

Input-

Byte Write Select 0, 1, 2, and 3 − Active LOW. Sampled on the rising edge of the K and K clocks

Synchronous during Write operations. It is used to select the byte that is written into the device during the current

portion of the write operations. Bytes not written remain unaltered.

CY7C1177V18 − BWS controls D

BWS , BWS

[8:0]

CY7C1168V18 − BWS controls D

and BWS controls D

[8:0],

[17:9].

, BWS controls D

CY7C1170V18 − BWS controls D

, BWS controls D

, and BWS

[26:18] 3

[8:0]

[17:9]

controls D

[35:27]

All the Byte Write Selects are sampled on the same edge as the data. Deselecting a Byte Write Select

ignores the corresponding byte of data and not written into the device.

Input-

Address Inputs. Sampled on the rising edge of the K clock during active read and write operations.

Synchronous These address inputs are multiplexed for both read and write operations. Internally, the device is

organized as 2M x 8 (two arrays each of1M x 8) for CY7C1166V18, 2M x 9 (two arrays each of 1M

x 9) for CY7C1177V18, 1M x 18 (two arrays each of 512K x 18) for CY7C1168V18, and 512K x 36

(two arrays each of 256K x 18) for CY7C1170V18. All the address inputs are ignored when the

appropriate port is deselected.

R/W

Input-

Synchronous

Synchronous Read/Write Input. When LD is LOW, this input designates the access type (read

when R/W is HIGH, write when R/W is LOW) for loaded address. R/W must meet the setup and hold

times around edge of K.

QVLD

Valid Output Valid Output Indicator. The Q Valid indicates valid output data. QVLD is edge aligned with CQ and

Indicator

CQ.

Input-

Clock

Positive Input Clock Input. The rising edge of K is used to capture synchronous inputs to the device

and to drive out data through Q

edge of K.

when in single clock mode. All accesses are initiated on the rising

[x:0]

Input-

Clock

Negative Input Clock Input. K is used to capture synchronous inputs being presented to the device

and to drive out data through Q when in single clock mode.

[x:0]

Clock Output Synchronous Echo Clock Outputs. This is a free running clock and is synchronized to the input

clock (K) of the DDR-II+. The timings for the echo clocks are shown in the “Switching Characteristics”

on page 22.

Synchronous Echo Clock Outputs. This is a free running clock and is synchronized to the input

clock (K) of the DDR-II+. The timings for the echo clocks are shown in the “Switching Characteristics”

on page 22.

Clock Output

Document Number: 001-06620 Rev. *D

Page 6 of 27

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CY7C1166V18, CY7C1177V18

CY7C1168V18, CY7C1170V18

Pin Definitions (continued)

Pin Name

Pin Description

Input

Output Impedance Matching Input. This input is used to tune the device outputs to the system data

bus impedance. CQ, CQ, and Q output impedance are set to 0.2 x RQ, where RQ is a resistor

[x:0]

connected between ZQ and ground. Alternatively, this pin can be connected directly to V

, which

DDQ

enables the minimum impedance mode. This pin cannot be connected directly to GND or left uncon-

nected.

DOFF

Input

DLL Turn Off − Active LOW. Connecting this pin to ground turns off the DLL inside the device. The

timings in the DLL turned off operation is different from those listed in this data sheet. For normal

operation, this pin can be connected to a pull up through a 10KΩ or less pull up resistor. The device

behaves in DDR-I mode when the DLL is turned off. In this mode, the device can be operated at a

frequency of up to 167 MHz with DDR-I timing.

TDO

Output

Input

N/A

TDO for JTAG.

TCK

TCK Pin for JTAG.

TDI

TDI Pin for JTAG.

TMS

TMS Pin for JTAG.

Not Connected to the Die. Tie to any voltage level.

Reference Voltage Input. Static input used to set the reference level for HSTL inputs, outputs, and

NC/36M

NC/72M

NC/144M

NC/288M

N/A

Input-

REF

Reference AC measurement points.

Power Supply Power Supply Inputs to the Core of the Device.

Ground

Ground for the Device.

Power Supply Power Supply Inputs for the Outputs of the Device.

DDQ

Document Number: 001-06620 Rev. *D

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CY7C1168V18, CY7C1170V18

Byte Write Operations

Functional Overview

Byte Write operations are supported by the CY7C1168V18. A

Write operation is initiated as described in the Write Operations

The CY7C1166V18, CY7C1177V18, CY7C1168V18, and

CY7C1170V18 are synchronous pipelined Burst SRAMs

equipped with a DDR interface.

section. The bytes that are written are determined by BWS and

BWS which are sampled with each set of 18-bit data word.

Accesses are initiated on the rising edge of the positive input

clock (K). All synchronous input and output timing are referenced

to the rising edge of the Input clocks (K/K).

Asserting the appropriate Byte Write Select input during the data

portion of a write enables the data being presented to be latched

and written into the device. Deasserting the Byte Write Select

input during the data portion of a write enables the data stored in

the device for that byte to remain unaltered. This feature can be

used to simplify read/modify/write operations to a Byte Write

operation.

All synchronous data inputs (D

) pass through input registers

[x:0]

controlled by the rising edge of the input clocks (K and K). All

synchronous data outputs (Q ) pass through output registers

[x:0]

controlled by the rising edge of the input clocks (K and K) also.

All synchronous control (R/W, LD, BWS ) inputs pass through

input registers controlled by the rising edge of the input clock

(K/K).

Double Data Rate Operation

[0:X]

The CY7C1168V18 enables high-performance operation

through high clock frequencies (achieved through pipelining) and

double data rate mode of operation. The CY7C1168V18 requires

two No Operation (NOP) cycle when transitioning from a read to

a write cycle. At higher frequencies, some applications may

require a third NOP cycle to avoid contention.

CY7C1168V18 is described in the following sections. The same

basic descriptions apply to CY7C1166V18, CY7C1177V18, and

CY7C1170V18.

Read Operations

If a read occurs after a write cycle, then the address and data for

the write are stored in registers. The write information must be

stored because the SRAM cannot perform the last word write to

the array without conflicting with the read. The data stays in this

after the read(s), the stored data from the earlier write is written

into the SRAM array. This is called a Posted Write.

The CY7C1168V18 is organized internally as a single array of

1M x 18. Accesses are completed in a burst of two sequential

18-bit data words. Read operations are initiated by asserting

R/W HIGH and LD LOW at the rising edge of the positive input

clock (K). The address presented to address inputs is stored in

the read address register. Following the next two K clock rise, the

corresponding 18-bit word of data from this address location is

If a read is performed on the same address on which a write is

performed in the previous cycle, the SRAM reads out the most

current data. The SRAM does this by bypassing the memory

array and reading the data from the registers.

driven onto the Q

using K as the output timing reference. On

[17:0]

the subsequent rising edge of K the next 18-bit data word from

the address location generated by the burst counter is driven

onto the Q

. The requested data is valid 0.45 ns from the

[17:0]

rising edge of the input clock (K/K). In order to maintain the

internal logic, each read access must be allowed to complete.

Read accesses can be initiated on every rising edge of the

positive input clock (K).

Depth Expansion

Depth expansion requires replicating the LD control signal for

each bank. All other control signals can be common between

banks as appropriate.

When read access is deselected, the CY7C1168V18 first

completes the pending read transactions. Synchronous internal

circuitry automatically tri-states the outputs following the next

rising edge of the negative Input clock (K). This enables for a

seamless transition between devices without the insertion of wait

states in a depth expanded memory.

Programmable Impedance

An external resistor, RQ, must be connected between the ZQ pin

on the SRAM and V to enable the SRAM to adjust its output

driver impedance. The value of RQ must be 5x the value of the

intended line impedance driven by the SRAM. The allowable

range of RQ to guarantee impedance matching with a tolerance

of ±15% is between 175Ω and 350Ω, with V

output impedance is adjusted every 1024 cycles upon power up

to account for drifts in supply voltage and temperature.

Write Operations

= 1.5V. The

DDQ

Write operations are initiated by asserting R/W LOW and LD

LOW at the rising edge of the positive input clock (K). The

address presented to address inputs is stored in the write

address register. On the following K clock rise the data presented

Echo Clocks

to D

is latched and stored into the 18-bit Write Data register

[17:0]

Echo clocks are provided on the DDR-II+ to simplify data capture

on high-speed systems. Two echo clocks are generated by the

DDR-II+. CQ is referenced with respect to K and CQ is refer-

enced with respect to K. These are free-running clocks and are

synchronized to the input clock of the DDR-II+. The timings for

the echo clocks are shown in the “Switching Characteristics” on

page 22.

provided BWS

are both asserted active. On the subsequent

[1:0]

rising edge of the Negative Input Clock (K) the information

presented to D is also stored into the Write Data register

provided BWS

is then written into the memory array at the specified location.

Write accesses can be initiated on every rising edge of the

positive input clock (K). This pipelines the data flow such that 18

bits of data can be transferred into the device on every rising

edge of the input clocks (K and K).

[17:0]

are both asserted active. The 36 bits of data

[1:0]

Valid Data Indicator (QVLD)

QVLD is provided on the DDR-II+ to simplify data capture on high

speed systems. The QVLD is generated by the DDR-II+ device

along with data output. This signal is also edge-aligned with the

When write access is deselected, the device ignores all inputs

after the pending write operations are completed.

Document Number: 001-06620 Rev. *D

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CY7C1166V18, CY7C1177V18

CY7C1168V18, CY7C1170V18

echo clock and follows the timing of any data pin. This signal is

asserted half a cycle before valid data arrives.

DDR-I mode (with 1.0 cycle latency and a longer access time).

For more information, refer to the application note, “DLL Consid-

erations in QDRII/DDRII/QDRII+/DDRII+”. The DLL can also be

reset by slowing or stopping the input clocks K and K for a

minimum of 30 ns. However, it is not necessary for the DLL to be

reset to lock to the desired frequency. During power up, when the

DOFF is tied HIGH, the DLL gets locked after 2048 cycles of

stable clock.

DLL

These chips use a Delay Lock Loop (DLL) that is designed to

function between 120 MHz and the specified maximum clock

frequency. The DLL may be disabled by applying ground to the

DOFF pin. When the DLL is turned off, the device behaves in

Application Example

Figure 1 shows two DDR-II+ used in an application.

Figure 1. Application Example

CQ/CQ

SRAM#1

LD R/W

SRAM#2

R = 250ohms

LD R/W

Addresses

Cycle Start

R/W

Source CLK

BUS

MASTER

(CPU or ASIC)

Echo Clock1/Echo Clock1

Echo Clock2/Echo Clock2

Truth Table

[2 , 3, 4, 5, 6, 7]

The truth table for the CY7C1166V18, CY7C1177V18, CY7C1168V18, and CY7C1170V18 follows.

Operation

LD R/W

Write Cycle:

L-H

D(A) at K (t + 1) ↑

D(A + 1) at K (t + 1) ↑

Load address; wait one cycle; input write data on consecutive

K and K rising edges.

Read Cycle: (2.5 Cycle Latency)

Load address; wait two and a half cycle; read data on consec-

utive K and K rising edges.

L-H

Q(A) at K (t + 2)↑

Q(A + 1) at K (t + 3) ↑

NOP: No Operation

L-H

High-Z

Standby: Clock Stopped

Stopped

Previous State

Notes

^{2. X = “Don’t Care,” H = Logic HIGH, L = Logic LOW,}↑ represents rising edge.

3. Device powers up deselected and the outputs in a tri-state condition.

4. “A” represents address location latched by the devices when transaction was initiated and A + 1 represents the addresses sequence in the burst.

5. “t” represents the cycle at which a Read/Write operation is started. t + 1, t + 2, and t + 3 are the first, second, and third clock cycles succeeding the “t” clock cycle.

6. Data inputs are registered at K and K rising edges. Data outputs are delivered on K and K rising edges.

7. Do K = K = HIGH when clock is stopped. This is not essential, but permits most rapid restart by overcoming transmission line charging symmetrically.

Document Number: 001-06620 Rev. *D

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CY7C1166V18, CY7C1177V18

CY7C1168V18, CY7C1170V18

Write Cycle Descriptions

[2, 8]

The write cycle descriptions of CY7C1166V18 and CY7C1168V18 follows.

BWS / BWS /

Comments

NWS

L–H

–

During the Data portion of a write sequence:

CY7C1166V18 − both nibbles (D

) are written into the device.

[7:0]

CY7C1168V18 − both bytes (D

) are written into the device.

[17:0]

–

L–H

–

L-H During the Data portion of a write sequence:

CY7C1166V18 − both nibbles (D

) are written into the device.

[7:0]

CY7C1168V18 − both bytes (D

[17:0]

–

During the Data portion of a write sequence:

CY7C1166V18 − only the lower nibble (D

) is written into the device, D

remains unaltered.

[3:0]

[7:4]

CY7C1168V18 − only the lower byte (D

) is written into the device, D

[8:0]

[17:9]

L–H During the Data portion of a write sequence:

CY7C1166V18 − only the lower nibble (D

) is written into the device, D

remains unaltered.

[3:0]

[7:4]

CY7C1168V18 − only the lower byte (D

) is written into the device, D

[8:0]

[17:9]

L–H

–

During the Data portion of a write sequence:

CY7C1166V18 − only the upper nibble (D

) is written into the device, D

remains unaltered.

[7:4]

[3:0]

[8:0]

CY7C1168V18 − only the upper byte (D

) is written into the device, D

[17:9]

L–H During the Data portion of a write sequence:

CY7C1166V18 − only the upper nibble (D

) is written into the device, D

remains unaltered.

[7:4]

[3:0]

[8:0]

CY7C1168V18 − only the upper byte (D

[17:9]

L–H

–

No data is written into the devices during this portion of a write operation.

L–H No data is written into the devices during this portion of a write operation.

[2, 8]

The write cycle descriptions of CY7C1177V18 follows.

BWS

L-H

–

Comments

–

During the Data portion of a Write sequence, the single byte (D

) is written into the device.

[8:0]

L-H During the Data portion of a Write sequence, the single byte (D

) is written into the device.

[8:0]

L-H

–

No data is written into the device during this portion of a Write operation.

L-H No data is written into the device during this portion of a Write operation.

Note

8. Is based on a write cycle was initiated in accordance with the Write Cycle Description Truth Table. Alter NWS , NWS , BWS , BWS , BWS , and BWS on different

portions of a write cycle, as long as the setup and hold requirements are achieved.

Document Number: 001-06620 Rev. *D

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CY7C1166V18, CY7C1177V18

CY7C1168V18, CY7C1170V18

[2, 8]

The write cycle descriptions of CY7C1170V18 follows.

BWS

Comments

L-H

–

During the data portion of a write sequence, all four bytes (D

the device.

) are written into

[35:0]

–

L-H

–

L-H During the data portion of a write sequence, all four bytes (D

the device.

[35:0]

–

During the data portion of a write sequence, only the lower byte (D

) is written

[8:0]

into the device. D

remains unaltered.

[35:9]

L-H During the data portion of a write sequence, only the lower byte (D

into the device. D remains unaltered.

[35:9]

L-H

–

During the data portion of a write sequence, only the byte (D

) is written into

[17:9]

the device. D

and D

remains unaltered.

[8:0]

[35:18]

L-H During the data portion of a write sequence, only the byte (D

the device. D and D remains unaltered.

) is written into

[17:9]

[8:0]

[35:18]

L-H

–

During the data portion of a write sequence, only the byte (D

) is written into

[26:18]

[35:27]

the device. D

and D

remains unaltered.

[17:0]

[35:27]

L-H During the data portion of a write sequence, only the byte (D

the device. D and D remains unaltered.

[17:0]

[35:27]

L-H

–

During the data portion of a write sequence, only the byte (D

the device. D remains unaltered.

[26:0]

L-H During the data portion of a write sequence, only the byte (D

the device. D remains unaltered.

[26:0]

L-H

–

No data is written into the device during this portion of a write operation.

L-H No data is written into the device during this portion of a write operation.

Document Number: 001-06620 Rev. *D

Page 11 of 27

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CY7C1168V18, CY7C1170V18

IEEE 1149.1 Serial Boundary Scan (JTAG)

Instruction Register

These SRAMs incorporate a serial boundary scan test access

port (TAP) in the FBGA package. This part is fully compliant with

IEEE Standard #1149.1-2001. The TAP operates using JEDEC

standard 1.8V IO logic levels.

Load three-bit instructions serially into the instruction register.

This register is loaded when it is placed between the TDI and

TDO pins as shown in “TAP Controller Block Diagram” on

page 15. Upon power up, the instruction register is loaded with

the IDCODE instruction. It is also loaded with the IDCODE

instruction if the controller is placed in a reset state as described

in the previous section.

Disabling the JTAG Feature

It is possible to operate the SRAM without using the JTAG

feature. To disable the TAP controller, TCK must be tied LOW

(V ) to prevent clocking of the device. TDI and TMS are inter-

nally pulled up and may be unconnected. They may alternately

When the TAP controller is in the Capture IR state, the two least

significant bits are loaded with a binary “01” pattern to allow fault

isolation of the board level serial test path.

be connected to V through a pull up resistor. TDO must be left

unconnected. Upon power up, the device comes up in a reset

state which does not interfere with the operation of the device.

Bypass Register

To save time when serially shifting data through registers, it is

sometimes advantageous to skip certain chips. The bypass

and TDO pins. This enables data to be shifted through the SRAM

Test Access Port—Test Clock

The test clock is used only with the TAP controller. All inputs are

captured on the rising edge of TCK. All outputs are driven from

the falling edge of TCK.

with minimal delay. The bypass register is set LOW (V ) when

the BYPASS instruction is executed.

Test Mode Select

Boundary Scan Register

The TMS input is used to give commands to the TAP controller

and is sampled on the rising edge of TCK. It is allowable to leave

this pin unconnected if the TAP is not used. The pin is pulled up

internally, resulting in a logic HIGH level.

The boundary scan register is connected to all of the input and

output pins on the SRAM. Several no connect (NC) pins are also

included in the scan register to reserve pins for higher density

devices.

Test Data-In (TDI)

The boundary scan register is loaded with the contents of the

RAM Input and Output ring when the TAP controller is in the

Capture-DR state and is then placed between the TDI and TDO

pins when the controller is moved to the Shift-DR state. Use the

EXTEST, SAMPLE/PRELOAD, and SAMPLE Z instructions to

capture the contents of the input and output ring.

The TDI pin is used to serially input information into the registers

and connect to the input of any of the registers. The register

between TDI and TDO is chosen by the instruction that is loaded

into the TAP instruction register. For more information about

loading the instruction register, see “TAP Controller State

Diagram” on page 14. TDI is internally pulled up and uncon-

nected if the TAP is not used in an application. TDI is connected

to the most significant bit (MSB) on any register.

The “Boundary Scan Order” on page 18 show the order in which

the bits are connected. Each bit corresponds to one of the bumps

on the SRAM package. The MSb of the register is connected to

TDI, and the LSb is connected to TDO.

Test Data-Out (TDO)

The TDO output pin is used to serially clock data-out from the

registers. The output is active depending upon the current state

of the TAP state machine (see “Instruction Codes” on page 17).

The output changes on the falling edge of TCK. TDO is

connected to the least significant bit (LSb) of any register.

Identification (ID) Register

The ID register is loaded with a vendor-specific 32-bit code

during the Capture-DR state when the IDCODE command is

loaded in the instruction register. The IDCODE is hardwired into

the SRAM and can be shifted out when the TAP controller is in

the Shift-DR state. The ID register has a vendor code and other

information described in the “Identification Register Definitions”

on page 17.

Performing a TAP Reset

A Reset is performed by forcing TMS HIGH (V ) for five rising

edges of TCK. This RESET does not affect the operation of the

SRAM and may be performed while the SRAM is operating. At

power up, the TAP is reset internally to ensure that TDO comes

up in a high-Z state.

TAP Instruction Set

Eight different instructions are possible with the three-bit

instruction register. All combinations are listed in the “Instruction

Codes” on page 17. Three of these instructions are listed as

RESERVED and must not be used. The other five instructions

are described in this section.

TAP Registers

Registers are connected between the TDI and TDO pins and

enable data to be scanned into and out of the SRAM test circuitry.

Select only one register at a time through the instruction

registers. Data is serially loaded into the TDI pin on the rising

edge of TCK. Data is output on the TDO pin on the falling edge

of TCK.

Instructions are loaded into the TAP controller during the Shift-IR

state when the instruction register is placed between TDI and

TDO. During this state, instructions are shifted through the

instruction register through the TDI and TDO pins. To execute

the instruction after it is shifted in, the TAP controller must be

moved into the Update-IR state.

Document Number: 001-06620 Rev. *D

Page 12 of 27

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IDCODE

PRELOAD enables an initial data pattern to be placed at the

latched parallel outputs of the boundary scan register cells be-

fore the selection of another boundary scan test operation.

The IDCODE instruction causes a vendor-specific 32-bit code to

be loaded into the instruction register. It also places the

instruction register between the TDI and TDO pins and enables

the IDCODE to be shifted out of the device when the TAP

controller enters the Shift-DR state. The IDCODE instruction is

loaded into the instruction register upon power up or whenever

the TAP controller is supplied a test logic reset state.

The shifting of data for the SAMPLE and PRELOAD phases can

occur concurrently when required—that is, while data captured

is shifted out, the preloaded data can be shifted in.

BYPASS

When the BYPASS instruction is loaded in the instruction register

and the TAP is placed in a Shift-DR state, the bypass register is

placed between the TDI and TDO pins. The advantage of the

BYPASS instruction is that it shortens the boundary scan path

when multiple devices are connected together on a board.

SAMPLE Z

The SAMPLE Z instruction causes the boundary scan register to

be connected between the TDI and TDO pins when the TAP

controller is in a Shift-DR state. The SAMPLE Z command puts

the output bus into a High-Z state until the next command is

supplied during the Update IR state.

EXTEST

The EXTEST instruction enables the preloaded data to be driven

out through the system output pins. This instruction also selects

the boundary scan register to be connected for serial access

between the TDI and TDO in the shift-DR controller state.

SAMPLE/PRELOAD

SAMPLE/PRELOAD is a 1149.1 mandatory instruction. When

the SAMPLE/PRELOAD instructions are loaded into the instruc-

tion register and the TAP controller is in the Capture-DR state, a

snapshot of data on the inputs and output pins is captured in the

boundary scan register.

EXTEST Output Bus Tri-State

IEEE Standard 1149.1 mandates that the TAP controller is able

to put the output bus into a tri-state mode.

The user must be aware that the TAP controller clock can only

operate at a frequency up to 20 MHz, while the SRAM clock

operates more than an order of magnitude faster. Because there

is a large difference in the clock frequencies, it is possible that

during the Capture-DR state, an input or output undergoes a

transition. The TAP may then try to capture a signal while in

transition (metastable state). This does not harm the device, but

there is no guarantee as to the value that is captured.

Repeatable results may not be possible.

The boundary scan register has a special bit located at bit #47.

When this scan cell, called the “extest output bus tri-state”, is

latched into the preload register during the Update-DR state in

the TAP controller, it directly controls the state of the output

(Q-bus) pins, when the EXTEST is entered as the current

instruction. When HIGH, it enables the output buffers to drive the

output bus. When LOW, this bit places the output bus into a

High-Z condition.

To guarantee that the boundary scan register captures the cor-

rect value of a signal, the SRAM signal must be stabilized long

enough to meet the TAP controller's capture setup plus hold

times (t and t ). The SRAM clock input might not be captured

correctly if there is no way in a design to stop (or slow) the clock

during a SAMPLE/PRELOAD instruction. If this is an issue, it is

still possible to capture all other signals and simply ignore the

value of the CK and CK captured in the boundary scan register.

Set this bit by entering the SAMPLE/PRELOAD or EXTEST

command, and then shifting the desired bit into that cell, during

the Shift-DR state. During Update-DR, the value loaded into that

shift-register cell latches into the preload register. When the

EXTEST instruction is entered, this bit directly controls the output

Q-bus pins. Note that this bit is preset HIGH to enable the output

when the device is powered up, and also when the TAP controller

is in the Test-Logic-Reset state.

After the data is captured, it is possible to shift out the data by

putting the TAP into the Shift-DR state. This places the boundary

scan register between the TDI and TDO pins.

Reserved

These instructions are not implemented but are reserved for

future use. Do not use these instructions.

Document Number: 001-06620 Rev. *D

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TAP Controller State Diagram

[9]

Figure 2 shows the tap controller state diagram.

Figure 2. Tap Controller State Diagram

TEST-LOGIC

RESET

TEST-LOGIC/

IDLE

SELECT

DR-SCAN

SELECT

IR-SCAN

CAPTURE-DR

CAPTURE-IR

SHIFT-DR

SHIFT-IR

EXIT1-DR

EXIT1-IR

PAUSE-DR

PAUSE-IR

EXIT2-DR

EXIT2-IR

UPDATE-DR

UPDATE-IR

Note

9. The 0/1 next to each state represents the value at TMS at the rising edge of TCK.

Document Number: 001-06620 Rev. *D

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TAP Controller Block Diagram

Figure 3. Tap Controller Block Diagram

Bypass Register

Selection

TDI

Selection

Circuitry

TDO

Circuitry

Instruction Register

31 30

Identification Register

106 .

Boundary Scan Register

TCK

TMS

TAP Controller

TAP Electrical Characteristics

[10, 11, 12]

The Tap Electrical Characteristics table over the operating range follows.

Parameter

Description

Output HIGH Voltage

Test Conditions

= −2.0 mA

Min

1.4

1.6

Max

Unit

OH1

OH2

OL1

OL2

Output HIGH Voltage

Output LOW Voltage

Input HIGH Voltage

= −100 μA

= 2.0 mA

0.4

0.2

= 100 μA

0.65 V

+ 0.3

Input LOW Voltage

–0.3

0.35 V

Input and Output Load Current

GND ≤ V ≤ V

−5

μA

Notes

10. These characteristics pertain to the TAP inputs (TMS, TCK, TDI and TDO). Parallel load levels are specified in the Electrical Characteristics Table.

11. Overshoot: V (AC) < V + 0.35V (pulse width less than t /2).

/2), undershoot: V (AC) > −0.3V (pulse width less than t

DDQ

CYC

12. All voltage refer to ground.

Document Number: 001-06620 Rev. *D

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TAP AC Switching Characteristics

[13, 14]

The Tap AC Switching Characteristics over the operating range follows.

Parameter

Description

Min

Max

Unit

TCK Clock Cycle Time

TCK Clock Frequency

TCK Clock HIGH

TCYC

MHz

TCK Clock LOW

Setup Times

TMS Setup to TCK Clock Rise

TDI Setup to TCK Clock Rise

Capture Setup to TCK Rise

TMSS

TDIS

Hold Times

TMS Hold after TCK Clock Rise

TDI Hold after Clock Rise

TMSH

TDIH

Capture Hold after Clock Rise

Output Times

TCK Clock LOW to TDO Valid

TCK Clock LOW to TDO Invalid

TDOV

TDOX

TAP Timing and Test Condition

[14]

The Tap Timing and Test Conditions for the CY7C1166V18, CY7C1177V18, CY7C1168V18, and CY7C1170V18 follows.

Figure 4. TAP Timing and Test Conditions

0.9V

ALL INPUT PULSES

50Ω

1.8V

TDO

0.9V

Z = 50

C = 20 pF

t_TL

t_TH

GND

(a)

Test Clock

TCK

t_TCYC

t_TMSH

t_TMSS

Test Mode Select

TMS

t_TDIS

t_TDIH

Test Data In

TDI

Test Data Out

TDO

t_TDOV

t_TDOX

Notes

13. t and t refer to the setup and hold time requirements of latching data from the boundary scan register.

14. Test conditions are specified using the load in TAP AC test conditions. t /t = 1 ns

Document Number: 001-06620 Rev. *D

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Identification Register Definitions

Value

Instruction Field

Description

CY7C1166V18

CY7C1177V18

000

CY7C1168V18

000

CY7C1170V18

Revision Number

(31:29)

000

Version number.

Cypress Device ID 11010111000000101 11010111000001101 11010111000010101 11010111000100101 Defines the type of

(28:12)

SRAM.

Cypress JEDEC ID

(11:1)

00000110100

Allows unique

identification of

SRAM vendor.

ID Register

Presence (0)

Indicates the

presence of an ID

Scan Register Sizes

Bit Size

Instruction

Bypass

107

Boundary Scan

Instruction Codes

Instruction

EXTEST

Code

000

Description

Captures the input output ring contents.

IDCODE

001

Loads the ID register with the vendor ID code and places the register between TDI

and TDO. This operation does not affect SRAM operation.

SAMPLE Z

010

Captures the Input Output contents. It places the boundary scan register between

TDI and TDO. This forces all SRAM output drivers to a High-Z state.

RESERVED

011

100

Do Not Use: This instruction is reserved for future use.

SAMPLE/PRELOAD

Captures the input output ring contents. It places the boundary scan register between

TDI and TDO. This operation does not affect the SRAM operation.

RESERVED

BYPASS

101

110

111

Do Not Use: This instruction is reserved for future use.

Places the bypass register between TDI and TDO. This operation does not affect

SRAM operation.

Document Number: 001-06620 Rev. *D

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Boundary Scan Order

Bit #

Bump ID

Bit #

Bump ID

11H

10G

Bit #

Bump ID

Bit #

Bump ID

11F

11G

10F

11E

10E

10D

11P

10P

10N

10C

11D

10M

11N

11B

11C

11L

11M

10B

11A

Internal

100

101

102

103

104

105

106

10L

11K

10K

10J

11J

Document Number: 001-06620 Rev. *D

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Power Up Sequence in DDR-II+ SRAM

DLL Constraints

DDR-II+ SRAMs must be powered up and initialized in a

predefined manner to prevent undefined operations. During

power up, when the DOFF is tied HIGH, the DLL gets locked after

2048 cycles of stable clock.

■ DLL uses K clock as its synchronizing input. The input must

have low phase jitter, which is specified as t

KC Var

■ The DLL functions at frequencies down to 120 MHz.

■ If the input clock is unstable and the DLL is enabled, then the

DLL may lock onto an incorrect frequency, causing unstable

SRAM behavior. To avoid this, provide 2048 cycles stable clock

to relock to the desired clock frequency.

Power Up Sequence

■ Apply power with DOFF tied HIGH (all other inputscan be HIGH

or LOW)

❐ Apply V before V

DDQ

❐ Apply V

before V

or at the same time as V

DDQ

REF REF

■ Provide stable power and clock (K, K) for 2048 cycles to lock

the DLL.

Power Up Waveforms

Figure 5. Power Up Waveforms

Start Normal

Operation

Unstable Clock

> 2048 Stable Clock

Clock Start (Clock Starts after V /V

DD DDQ

is Stable)

/V Stable (< 0.1V DC per 50 ns)

DD DDQ

Fix HIGH (tie to V

DDQ

)

DOFF

Document Number: 001-06620 Rev. *D

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Current into Outputs (LOW)......................................... 20 mA

Static Discharge Voltage (MIL-STD-883, M 3015).... >2001V

Latch up Current..................................................... >200 mA

Maximum Ratings

Exceeding maximum ratings may shorten the useful life of the

device. User guidelines are not tested.

Storage Temperature ................................ –65°C to + 150°C

Ambient Temperature with Power Applied. –55°C to + 125°C

Operating Range

Ambient

Supply Voltage on V Relative to GND .......–0.5V to + 2.9V

[15]

DDQ

Range

Commercial

Industrial

Temperature

0°C to +70°C

–40°C to +85°C

Supply Voltage on V

Relative to GND..... –0.5V to + V

DDQ

1.8 ± 0.1V

1.4V to

DC Applied to Outputs in High-Z .........–0.5V to V

+ 0.3V

DDQ

[11]

DC Input Voltage ...............................–0.5V to V + 0.3V

Electrical Characteristic

[12]

The DC Electrical Characteristics over the operating range follows.

Parameter

Description

Power Supply Voltage

IO Supply Voltage

Test Conditions

Min

1.7

1.4

Typ

1.8

1.5

Max

Unit

1.9

DDQ

Output HIGH Voltage

Output LOW Voltage

Output HIGH Voltage

Output LOW Voltage

Input HIGH Voltage

Input LOW Voltage

Note 16

Note 17

/2 – 0.12

/2 + 0.12

DDQ

= –0.1 mA, Nominal Impedance

= 0.1 mA, Nominal Impedance

– 0.2

OH(LOW)

OL(LOW)

DDQ

0.2

+ 0.1

+ 0.15

– 0.1

REF

DDQ

–0.15

Input Leakage Current

Output Leakage Current

Input Reference Voltage

GND ≤ V ≤ V

–2

μA

DDQ

GND ≤ V ≤ V

Output Disabled

DDQ,

[18]

Typical Value = 0.75V

0.68

0.75

0.95

850

920

1020

1080

250

260

290

300

REF

[19]

Operating Supply

= Max, I

= 0 mA, 300 MHz

333 MHz

OUT

CYC

f = f

= 1/t

max

375 MHz

400 MHz

Automatic Power Down Current Max V

300 MHz

SB1

Both Ports Deselected,

333 MHz

375 MHz

400 MHz

≥ V or V ≤ V

f = f

= 1/t

max

CYC

Inputs Static

AC Input Requirements

[11]

Over the operating range

Parameter

Description

Input HIGH Voltage

Input LOW Voltage

Test Conditions

Min

Typ

–

Max

Unit

+ 0.2

+ 0.24

DDQ

REF

–0.24

–

– 0.2

REF

Notes

15. Power up: Is based on a linear ramp from 0V to V (min) within 200 ms. During this time V < V and V

< V

DD.

DDQ

16. Outputs are impedance controlled. I = –(V

/2)/(RQ/5) for values of 175Ω < RQ < 350Ω.

DDQ

17. Outputs are impedance controlled. I = (V

/2)/(RQ/5) for values of 175Ω < RQ < 350Ω

DDQ

18. V

(min) = 0.68V or 0.46V

, whichever is larger, V

(max) = 0.95V or 0.54V

, whichever is smaller.

DDQ

REF

DDQ

REF

19. The operation current is calculated with 50% read cycle and 50% write cycle.

Document Number: 001-06620 Rev. *D

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Capacitance

Tested initially and after any design or process change that may affect these parameters.

Parameter Description Test Conditions

Input Capacitance T = 25°C, f = 1 MHz,

Max

Unit

= 1.8V

Clock Input Capacitance

Output Capacitance

CLK

= 1.5V

DDQ

Thermal Resistance

Tested initially and after any design or process change that may affect these parameters.

165 FBGA

Package

Parameter

Description

Test Conditions

Unit

Thermal Resistance

(junction to ambient)

Test conditions follow standard test methods and

procedures for measuring thermal impedance, in

accordance with EIA/JESD51.

17.2

°C/W

Thermal Resistance

(junction to case)

4.15

°C/W

AC Test Loads and Waveforms

Figure 6. AC Test loads and Waveforms

V_REF= 0.75V

0.75V

V_REF

0.75V

R = 50Ω

OUTPUT

[20]

ALL INPUT PULSES

Z = 50Ω

DEVICE

R = 50Ω

OUTPUT

1.25V

0.75V

UNDER

DEVICE

UNDER

0.25V

TEST

5 pF

V_REF= 0.75V

SLEW RATE= 2 V/ns

TEST

RQ =

250Ω

INCLUDING

JIG AND

SCOPE

(a)

(b)

Note

20. Unless otherwise noted, test conditions are based on a signal transition time of 2V/ns, timing reference levels of 0.75V, V

= 0.75V, RQ = 250Ω, V

= 1.5V, input

REF

DDQ

pulse levels of 0.25V to 1.25V, and output loading of the specified I /I and load capacitance shown in (a) of AC T e st Loads and Waveforms.

OL OH

Document Number: 001-06620 Rev. *D

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Switching Characteristics

[20, 21]

Over the operating range

400 MHz

375 MHz

333 MHz

300 MHz

Cypress Consortium

Parameter Parameter

Description

Unit

Min Max Min Max Min Max Min Max

[22]

(Typical) to the first Access

–

POWER

CYC

K Clock Cycle Time

2.50 8.40 2.66 8.40 3.0 8.40 3.3 8.40

KHKH

KHKL

KLKH

KHKH

Input Clock (K/K) HIGH

Input Clock (K/K) LOW

0.4

–

0.4

–

0.4

–

0.4

–

CYC

K Clock Rise to K Clock Rise

(rising edge to rising edge)

1.06

1.13

1.28

1.40

KHKH

Setup Times

Address Setup to K Clock Rise

0.4

–

0.4

–

0.4

–

0.4

–

AVKH

IVKH

Control Setup to K Clock Rise (LD, R/W)

Double Data Rate Control Setup to Clock (K/K) 0.28

Rise (BWS , BWS , BWS , BWS )

0.28

SCDDR

D Setup to Clock (K/K) Rise

[X:0]

0.28

–

0.28

–

0.28

–

0.28

–

DVKH

Hold Times

0.4

–

0.4

–

0.4

–

0.4

–

Address Hold after K Clock Rise

Control Hold after K Clock Rise (LD, R/W)

KHAX

KHIX

Double Data Rate Control Hold after Clock (K/K) 0.28

Rise (BWS , BWS , BWS , BWS )

0.28

HCDDR

D Hold after Clock (K/K) Rise

[X:0]

0.28

–

0.28

–

0.28

–

0.28

–

KHDX

Output Times

K/K Clock Rise to Data Valid

–

0.45

–

0.45

–

0.45

–

0.45

–

CHQV

CHQX

Data Output Hold after K/K Clock Rise

(Active to Active)

–0.45

DOH

K/ Clock Rise to Echo Clock Valid

–

0.45

–

0.45

–

0.45

–

0.45

–

CCQO

CQOH

CQD

CHCQV

CHCQX

CQHQV

CQHQX

CQHCQL

CQHCQH

Echo Clock Hold after K/K Clock Rise

Echo Clock High to Data Valid

–0.45

–

–0.45

–

–0.45

–

–0.45

–

0.2

–

0.2

–

0.2

–

0.2

–

Echo Clock High to Data Invalid

–0.2

0.81

–0.2

0.88

–0.2

1.03

–0.2

1.15

CQDOH

CQH

[23]

Output Clock (CQ/CQ) HIGH

–

[23]

CQ Clock Rise to CQ Clock Rise

–

CQHCQH

(rising edge to rising edge)

[24, 25]

Clock (K/K) Rise to High-Z (Active to High-Z)

–

0.45

–

0.45

–

0.45

–

0.45

–

CHZ

CLZ

CHQZ

CHQX1

QVLD

[24, 25]

Clock (K/K) Rise to Low-Z

–0.45

[26]

Echo Clock High to QVLD Valid

–0.20 0.20 –0.20 0.20 –0.20 0.20 –0.20 0.20

QVLD

DLL Timing

Clock Phase Jitter

DLL Lock Time (K)

–

0.20

–

0.20

–

0.20

–

0.20

–

KC Var

2048

Cycles

KC lock

KC Reset

KC lock

KC Reset

[27]

K Static to DLL Reset

–

Notes

21. When a part with a maximum frequency above 300 MHz is operating at a lower clock frequency, it requires the input timings of the frequency range in which it is being

operated and outputs data with the output timings of that frequency range.

22. This part has a voltage regulator internally; t

initiated.

23. These parameters are extrapolated from the input timing parameters (t

is the time that the power must be supplied above V minimum initially before a read or write operation can be

POWER

- 250 ps, where 250 ps is the internal jitter. An input jitter of 200 ps (t

) is already

KHKH

KC Var

included in the t

). These parameters are only guaranteed by design and are not tested in production.

KHKH

24. t

, t

, are specified with a load capacitance of 5 pF as in (b) of “AC T e st Loads and Waveforms” on page 21. Transition is measured ± 100 mV from steady-state

CHZ CLZ

voltage.

25. At any voltage and temperature t

is less than t

and t

less than t

CHZ

CLZ

CHZ

26. t

spec is applicable for both rising and falling edges of QVLD signal.

QVLD

27. Hold to >V or <V .

Document Number: 001-06620 Rev. *D

Page 22 of 27

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CY7C1168V18, CY7C1170V18

Switching Waveform

Read/Write/Deselect Sequence

[28, 29]

Figure 7. Waveform for 2.5 Cycle Read Latency

NOP

READ

NOP

WRITE

NOP

READ

NOP

KHKH

CYC

R/W

QVLD

SA HA

QVLD

D21 D30 D31

Q00 Q01 Q10 Q11

D20

Q40

DOH

CHZ

CLZ

CQD

(Read Latency = 2.5 Cycles)

CQDOH

CCQO

CQOH

CQH

CQHCQH

CCQO

CQOH

DON’T CARE

UNDEFINED

Notes

28. Q00 refers to output from address A0. Q01 refers to output from the next internal burst address following A0, i.e., A0 + 1.

29. Outputs are disabled (High-Z) one clock cycle after a NOP.

Document Number: 001-06620 Rev. *D

Page 23 of 27

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CY7C1168V18, CY7C1170V18

Ordering Information

Not all of the speed, package and temperature ranges are available. Contact your local sales representative or visit www.cypress.com

for actual products offered.

Speed

(MHz)

Package

Diagram

Operating

Range

Ordering Code

Package Type

400 CY7C1166V18-400BZC

CY7C1177V18-400BZC

CY7C1168V18-400BZC

CY7C1170V18-400BZC

CY7C1166V18-400BZXC

CY7C1177V18-400BZXC

CY7C1168V18-400BZXC

CY7C1170V18-400BZXC

CY7C1166V18-400BZI

CY7C1177V18-400BZI

CY7C1168V18-400BZI

CY7C1170V18-400BZI

CY7C1166V18-400BZXI

CY7C1177V18-400BZXI

CY7C1168V18-400BZXI

CY7C1170V18-400BZXI

375 CY7C1166V18-375BZC

CY7C1177V18-375BZC

CY7C1168V18-375BZC

CY7C1170V18-375BZC

CY7C1166V18-375BZXC

CY7C1177V18-375BZXC

CY7C1168V18-375BZXC

CY7C1170V18-375BZXC

CY7C1166V18-375BZI

CY7C1177V18-375BZI

CY7C1168V18-375BZI

CY7C1170V18-375BZI

CY7C1166V18-375BZXI

CY7C1177V18-375BZXI

CY7C1168V18-375BZXI

CY7C1170V18-375BZXI

51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.4 mm)

51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.4 mm) Pb-Free

51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.4 mm)

51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.4 mm) Pb-Free

51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.4 mm)

51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.4 mm) Pb-Free

51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.4 mm)

51-85180 165-Ball Fine Pitch Ball Grid Array (13 x 15 x 1.4 mm) Pb-Free

Commercial

Industrial

Commercial

Industrial

Document Number: 001-06620 Rev. *D

Page 24 of 27

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Ordering Information (continued)

Not all of the speed, package and temperature ranges are available. Contact your local sales representative or visit www.cypress.com

for actual products offered.

Speed

(MHz)

Package

Diagram

Operating

Range

Ordering Code

Package Type

333 CY7C1166V18-333BZC

CY7C1177V18-333BZC

CY7C1168V18-333BZC

CY7C1170V18-333BZC

CY7C1166V18-333BZXC

CY7C1177V18-333BZXC

CY7C1168V18-333BZXC

CY7C1170V18-333BZXC

CY7C1166V18-333BZI

CY7C1177V18-333BZI

CY7C1168V18-333BZI

CY7C1170V18-333BZI

CY7C1166V18-333BZXI

CY7C1177V18-333BZXI

CY7C1168V18-333BZXI

CY7C1170V18-333BZXI

300 CY7C1166V18-300BZC

CY7C1177V18-300BZC

CY7C1168V18-300BZC

CY7C1170V18-300BZC

CY7C1166V18-300BZXC

CY7C1177V18-300BZXC

CY7C1168V18-300BZXC

CY7C1170V18-300BZXC

CY7C1166V18-300BZI

CY7C1177V18-300BZI

CY7C1168V18-300BZI

CY7C1170V18-300BZI

CY7C1166V18-300BZXI

CY7C1177V18-300BZXI

CY7C1168V18-300BZXI

CY7C1170V18-300BZXI