NOVEMBER2014

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©2014 Integrated Device Technology, Inc.

Features

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32K x 8 advanced high-speed CMOS static RAM

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Commercial (0° to 70°C) and Industrial (-40° to 85°C)

temperature options

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Equal access and cycle times

– Commercial: 12ns

– Commercial and Industrial: 15/20/25ns

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One Chip Select plus one Output Enable pin

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Bidirectional data inputs and outputs directly

TTL-compatible

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Low power consumption via chip deselect

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Commercial product available in 28-pin 300-mil Plastic DIP,

300 mil Plastic SOJ and TSOP packages

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Industrial product available in 28-pin 300 mil Plastic SOJ

and TSOP packages

Description

The IDT71256SA is a 262,144-bit high-speed Static RAM

organized as 32K x 8. It is fabricated using high-performance, high-

reliability CMOS technology. This state-of-the-art technology, com-

bined with innovative circuit design techniques, provides a cost-

effective

solution

for

high-speed

memory

needs.

The IDT71256SA has an output enable pin which operates as fast

as 6ns, with address access times as fast as 12ns. All bidirectional

inputs and outputs of the IDT71256SA are TTL-compatible and

operation is from a single 5V supply. Fully static asynchronous

circuitry is used, requiring no clocks or refresh for operation.

The IDT71256SA is packaged in 28-pin 300-mil Plastic DIP, 28-

pin 300 mil Plastic SOJ and TSOP.

Functional Block Diagram

CMOS Static RAM

256K (32K x 8-Bit)

IDT71256SA

CS

WE

OE

8

8

CONTROL

LOGIC

I/O CONTROL

262,144-BIT

MEMORY

ARRAY

ADDRESS

DECODER

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