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Jul.30.20

Features

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◆ High-speed address/chip select access time

– Commercial: 20/25ns (max.)

– Industrial: 20/25ns (max.)

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

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◆ Low power consumption

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◆ Battery backup operation – 2V data retention voltage

(L Version only)

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◆ Produced with advanced CMOS high-performance

technology

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◆ Inputs and outputs directly TTL-compatible

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◆ Three-state outputs

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◆ Available in 28-pin DIP, CERDIP and SOJ

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

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Industrial temperature range (–40°C to +85°C) is available

for selected speeds

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◆ Green parts available, see ordering information

Description

TheIDT7164isa65,536bithigh-speedstaticRAMorganizedas8K

x8.Itisfabricatedusinghigh-performance,high-reliabilityCMOStech-

nology.

Addressaccesstimesasfastas20nsareavailableandthecircuitoffers

a reduced power standby mode. When CS1 goes HIGH or CS2 goes

LOW,thecircuitwillautomaticallygoto,andremainin,alow-powerstand-

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 CERDIP, a 28-pin 600

mil CERDIP, 300mil Plastic DIP and 300mil SOJ

Militarygradeproductismanufacturedincompliancewith MIL-STD-

883,ClassB,makingitideallysuitedtomilitarytemperatureapplications

demandingthehighestlevelofperformanceandreliability.

Functional Block Diagram

ADDRESS

DECODER

65,536 BIT

MEMORY ARRAY

I/O CONTROL

2967 drw 01

WE

CS

VCC

GND

I/O 0

I/O7

CONTROL

LOGIC

OE

2

CS1

A0

A12

0

7

7164S

7164L

CMOS Static RAM

64K (8K x 8-Bit)