MCM6343TS12 Freescale Semiconductor, Inc, MCM6343TS12 Datasheet

MCM6343TS12

Manufacturer Part Number

MCM6343TS12

Description

Manufacturer

Freescale Semiconductor, Inc

Datasheet

1.MCM6343TS12.pdf (10 pages)

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MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Product Preview

256K x 16 Bit 3.3 V Asynchronous

Fast Static RAM

262,144 words of 16 bits. Static design eliminates the need for external clocks

or timing strobes.

enable (G) pins, allowing for greater system flexibility and eliminating bus con-

tention problems. Separate byte enable controls (LB and UB) allow individual

bytes to be written and read. LB controls the lower bits DQ0 to DQ7, while UB

controls the upper bits DQ8 to DQ15.

and a 44–lead TSOP Type II package.

This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.

REV 2

2/10/98

MOTOROLA FAST SRAM

The MCM6343 is a 4,194,304–bit static random access memory organized as

The MCM6343 is equipped with chip enable (E), write enable (W), and output

The MCM6343 is available in a 400 mil, 44–lead small–outline SOJ package

Motorola, Inc. 1998

Single 3.3 V

Fast Access Time: 12/15 ns

Equal Address and Chip Enable Access Time

All Inputs and Outputs are TTL Compatible

Data Byte Control

Fully Static Operation

Power Operation: 250/240/230 mA Maximum, Active AC

Commercial and Standard Industrial Temperature Option: – 40 to + 85 C

ADDRESS

BUFFERS

OUTPUT

BUFFER

ENABLE

BUFFER

ENABLE

WRITE

BYTE

CHIP

0.3 V Power Supply

DECODER

BLOCK DIAGRAM

ROW

256K x 16

MEMORY

ARRAY

BIT

HIGH BYTE WRITE ENABLE

LOW BYTE WRITE ENABLE

DECODER

COLUMN

HIGH BYTE OUTPUT ENABLE

LOW BYTE OUTPUT ENABLE

SENSE

AMPS

OUTPUT

BUFFER

DRIVER

WRITE

HIGH

BYTE

HIGH

BYTE

LOW

A0 – A17

DQ0 – DQ15

V DD

V SS

. . . . . . . . . . . . . . . . . . . . . . . . .

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. . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . .

DQ0

DQ1

DQ2

DQ3

V DD

V SS

DQ4

DQ5

DQ6

DQ7

MCM6343

. . . . . . . . . . . . . . . . .

PIN ASSIGNMENT

. . . . . . . . . .

PIN NAMES

+ 3.3 V Power Supply

Order this document

CASE 924A–02

TS PACKAGE

TSOP TYPE II

Data Input/Output

YJ PACKAGE

CASE 919–01

400 MIL SOJ

No Connection

Output Enable

by MCM6343/D

Address Input

Write Enable

DQ15

DQ14

DQ13

DQ12

V SS

V DD

DQ11

DQ10

DQ9

DQ8

Chip Enable

Upper Byte

Lower Byte

MCM6343

Ground

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MCM6343TS12 Summary of contents

Page 1

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Product Preview 256K x 16 Bit 3.3 V Asynchronous Fast Static RAM The MCM6343 is a 4,194,304–bit static random access memory organized as 262,144 words of 16 bits. Static design eliminates the need for external clocks ...

Page 2

TRUTH TABLE (X = Don’t Care Output Disabled Output Disabled ...

Page 3

DC OPERATING CONDITIONS AND CHARACTERISTICS ( 3 – for Industrial Temperature Offering) RECOMMENDED OPERATING CONDITIONS Parameter Power Supply Voltage Input High Voltage Input Low Voltage * V IL (min) ...

Page 4

AC OPERATING CONDITIONS AND CHARACTERISTICS ( 3 – for Industrial Temperature Offering) Logic Input Timing Measurement Reference Level Logic Input Pulse Levels . . . . . . . ...

Page 5

A (ADDRESS) Q (DATA OUT) PREVIOUS DATA VALID A (ADDRESS) E (CHIP ENABLE) G (OUTPUT ENABLE) LB, UB (BYTE ENABLE) Q (DATA OUT) MOTOROLA FAST SRAM READ CYCLE 1 (See Note 8) t AVAV t AXQX t AVQV READ CYCLE ...

Page 6

WRITE CYCLE 1 (W Controlled; See Notes 1, 2, and 3) Parameter P Write Cycle Time Address Setup Time Address Valid to End of Write Address Valid to End of Write (G High) Write Pulse Width Write Pulse Width (G ...

Page 7

WRITE CYCLE 2 (E Controlled; See Notes 1, 2, and 3) Parameter P Write Cycle Time Address Setup Time Address Valid to End of Write Address Valid to End of Write (G High) Enable to End of Write Enable to ...

Page 8

WRITE CYCLE 3 (E Controlled; See Notes 1, 2, and 3) Parameter P Write Cycle Time Address Setup Time Address Valid to End of Write Address Valid to End of Write (G High) Byte Pulse Width Byte Pulse Width (G ...

Page 9

... 44X MCM6343TS12 MCM6343TS15 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION D DOES NOT INCLUDE MOLD FLASH, TIE BAR BURRS AND GATE BURRS. MOLD FLASH, TIE BAR BURRS AND GATE BURRS SHALL NOT EXCEED 0.006 PER END. DIMENSION E1 DOES NOT INCLUDE INTERLEAD FLASH ...

Page 10

42X É É É É c É É É É É É É É SECTION A–A 40 PLACES Motorola reserves the right to make changes without ...

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