MCM6949 Просмотр технического описания (PDF) - Motorola => Freescale

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MCM6949

1M x 4 Bit Static Random Access Memory

Motorola => Freescale 

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

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by MCM6949/D

Advance Information

1M x 4 Bit Static Random

Access Memory

The MCM6949 is a 4,194,304 bit static random access memory organized as

1,048,576 words of 4 bits. Static design eliminates the need for external clocks

or timing strobes.

The MCM6949 is equipped with chip enable (E) and output enable (G) pins,

allowing for greater system flexibility and eliminating bus contention problems.

Either input, when high, will force the outputs into high–impedance.

The MCM6949 is available in a 400 mil, 32–lead surface–mount SOJ package.

• Single 3.3 V – 5%, + 10% Power Supply

• Fast Access Time: 8/10/12/15 ns

• Equal Address and Chip Enable Access Time

• All Inputs and Outputs are TTL Compatible

• Three–State Outputs

• Power Operation: 195/165/160/155 mA Maximum, Active AC

MCM6949

YJ PACKAGE

400 MIL SOJ

CASE 857A–02

PIN NAMES

A0 – A19 . . . . . . . . . . . . . . . . Address Inputs

W . . . . . . . . . . . . . . . . . . . . . . . Write Enable

G . . . . . . . . . . . . . . . . . . . . . . Output Enable

E . . . . . . . . . . . . . . . . . . . . . . . . . Chip Enable

DQ . . . . . . . . . . . . . . . . . . Data Input/Output

NC . . . . . . . . . . . . . . . . . . . . . No Connection

VCC . . . . . . . . . . . . . . + 3.3 V Power Supply

VSS . . . . . . . . . . . . . . . . . . . . . . . . . . Ground

This document contains information on a new product. Specifications and information herein are subject to change without notice.

REV 4

4/2/98

©MMOoTtoOrolRa,OIncL.A19F98AST SRAM

MCM6949

1

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