IDT71256SA 데이터 시트보기 (PDF) - Integrated Device Technology

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IDT71256SA

CMOS STATIC RAM 256K (32K x 8-BIT)

Integrated Device Technology 

CMOS Static RAM

256K (32K x 8-Bit)

IDT71256SA

Features

◆ 32K x 8 advanced high-speed CMOS static RAM

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

temperature options

◆ Equal access and cycle times

– Commercial and Industrial: 12/15/20/25ns

◆ One Chip Select plus one Output Enable pin

◆ Bidirectional data inputs and outputs directly

TTL-compatible

◆ Low power consumption via chip deselect

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

300 mil Plastic SOJ and TSOP packages

◆ 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 IDT’s high-perfomance, high-reliability

CMOS technology. This state-of-the-art technology, combined 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

A0

A1

A2

A3

A4

A5

A6

ADDRESS

A7

A8

DECODER

A9

A10

A11

A12

A13

A14

262,144-BIT

MEMORY

ARRAY

,

I/O0 - I/O7 8

8

I/O CONTROL

CS

WE

CONTROL

OE

LOGIC

1

©2011 Integrated Device Technology, Inc.

2948 drw 01

APRIL 2011

DSC-2948/10

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