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MCM6729

Description
256K x 4 Bit Fast Static Random Access Memory
File Size77KB,8 Pages
ManufacturerMotorola ( NXP )
Websitehttps://www.nxp.com
Download Datasheet View All

MCM6729 Overview

256K x 4 Bit Fast Static Random Access Memory

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MCM6729/D
256K x 4 Bit Fast Static Random
Access Memory
The MCM6729 is a 1,048,576 bit static random access memory organized as
262,144 words of 4 bits. This device is fabricated using high performance silicon–
gate BiCMOS technology. Static design eliminates the need for external clocks
or timing strobes.
Output enable (G) is a special control feature that provides increased system
flexibility and eliminates bus contention problems.
This device meets JEDEC standards for functionality and revolutionary pinout,
and is available in a 400 mil plastic small–outline J–leaded package.
Single 5 V
±
10% Power Supply
Fully Static — No Clock or Timing Strobes Necessary
All Inputs and Outputs Are TTL Compatible
Three State Outputs
Fast Access Times: 10, 12 ns
Center Power and I/O Pins for Reduced Noise
MCM6729
WJ PACKAGE
400 MIL SOJ
CASE 857A–02
PIN ASSIGNMENT
NC
A
A
A
A
E
DQ0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A
A
A
A
A
G
DQ3
VSS
VCC
DQ2
A
A
A
A
A
NC
BLOCK DIAGRAM
A
A
A
A
A
A
A
A
A
DQ0
INPUT
DATA
CONTROL
DQ3
A
A
ROW
DECODER
MEMORY
MATRIX
512 ROWS x 512 x 4
COLUMNS
VCC
VSS
VCC
VSS
DQ1
W
A
A
A
A
NC
PIN NAMES
COLUMN I/O
COLUMN DECODER
A0 – A17 . . . . . . . . . . . . . . Address Input
E . . . . . . . . . . . . . . . . . . . . . . Chip Enable
W . . . . . . . . . . . . . . . . . . . . Write Enable
G . . . . . . . . . . . . . . . . . . . Output Enable
DQ0 – DQ3 . . . . . . . . Data Input/Output
VCC . . . . . . . . . . . . + 5 V Power Supply
VSS . . . . . . . . . . . . . . . . . . . . . . . Ground
NC . . . . . . . . . . . . . . . . . . No Connection
A
A
A
A
A
A
A
E
W
G
REV 4
5/95
©
Motorola, Inc. 1995
MOTOROLA FAST SRAM
MCM6729
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