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CMOS Static RAM

64K (8K x 8-Bit)

Features

High-speed address/chip select access time

鈥?Military: 20/25/35/45/55/70/85/100ns (max.)

鈥?Industrial: 25/35ns (max.)

鈥?Commercial: 15/20/25/35ns (max.)

Low power consumption

Battery backup operation 鈥?2V data retention voltage

(L Version only)

Produced with advanced CMOS high-performance

technology

Inputs and outputs directly TTL-compatible

Three-state outputs

Available in 28-pin DIP, CERDIP and SOJ

Military product compliant to MIL-STD-883, Class B

IDT7164S

IDT7164L

x

Description

The IDT7164 is a 65,536 bit high-speed static RAM organized as 8K

x 8. It is fabricated using IDT鈥檚 high-performance, high-reliability CMOS

technology.

Address access times as fast as 15ns are available and the circuit

offers a reduced power standby mode. When

CS

1

goes HIGH or CS

2

goes LOW, the circuit will automatically go to, and remain in, a low-

power stand by mode. The low-power (L) version also offers a battery

backup data retention capability at power supply levels as low as 2V.

All inputs and outputs of the IDT7164 are TTL-compatible and

operation is from a single 5V supply, simplifying system designs. Fully

static asynchronous circuitry is used, requiring no clocks or refreshing

for operation.

The IDT7164 is packaged in a 28-pin 300 mil DIP and SOJ and a 28-

pin 600 mil CERDIP.

Military grade product is manufactured in compliance with the latest

revision of MIL-STD-883, Class B, making it ideally suited to military

temperature applications demanding the highest level of performance

and reliability.

x

x

x

x

x

x

x

Functional Block Diagram

A

0

V

CC

ADDRESS

DECODER

65,536 BIT

MEMORY ARRAY

GND

A

12

0

7

I/O

0

I/O CONTROL

I/O

7

CS

1

CS

2

OE

WE

CONTROL

LOGIC

2967 drw 01

DECEMBER 2001

1

漏2000 Integrated Device Technology, Inc.

DSC-2967/11

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