P93U422-35SC datasheet(1/10 Pages) PYRAMID

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Document # SRAM102 REV A

Revised October 2005

FEATURES

Universal 256 x 4 Static RAM

One part, the P93U422, replaces the following

bipolar and CMOS parts:

– 93422, 93422A

– 93L422, 93L422A

Fast Access Time – 35 ns Commercial and

Military

Available in the following packages:

– PDIP, CERDIP, Side Brazed DIP

– CERPACK

– LCC

– SOIC

DESCRIPTION

The P93U422 is a 1,024-bit high-speed Static RAM with

a 256 x 4 organization. The P93U422 is a universal

device designed to replace the entire 93 and 93L 256 x

4 static RAM families. The memory requires no clocks

or refreshing and has equal access and cycle times.

Inputs and outputs are fully TTL compatible. Operation

is from a single 5 Volt supply. Easy memory expansion

is provided by an active LOW chip select one (CS

1) and

P93U422

HIGH SPEED 256 x 4

STATIC CMOS RAM

FUNCTIONALBLOCKDIAGRAM

PINCONFIGURATIONS

CMOS for Low Power

– 440 mW (Commercial)

– 495 mW (Military)

5V Power Supply ±10% for both commercial

and military temperature ranges

Separate I/O

Fully static operation with equal access and

cycle times

Resistant to single event upset and latchup

due to advanced process and design

improvements

active HIGH chip select two (CS

2) as well as 3-state

outputs.

In addition to high performance, the device features latch-

up protection, single event and upset protection. The

P93U422 is offered in several packages: 22-pin 400 mil

DIP (plastic and ceramic), 24-pin 300 mil SOIC, 24-pin

square LCC and 24-pin CERPACK. Devices are offered

in both commercial and military temperature ranges.

SOIC (S4)

CERPACK (F3)

DIP (P3-1, C3-1, D3-1)

LCC (L4)

Số phần tương tự - P93U422-35SC

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