MCM8A10 Datasheet, PDF (1/8 Pages) Motorola, Inc – 1M x 8 Bit Fast Static RAM Module

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Advance Information
1M x 8 Bit
Fast Static RAM Module
The MCM8A10 is an 8M bit static random access memory module organized
as 1,048,576 words of 8 bits. The module is offered in a 72–lead single in–line
memory module (SIMM). Eight MCM6227B fast static RAMs, packaged in
28–lead SOJ packages are mounted on a printed circuit board along with eight
decoupling capacitors.
The MCM6227B is organized as 1,048,576 words of 1 bit. Static design elimi-
nates the need for external clocks or timing strobes, while CMOS circuitry re-
duces power consumption and provides for greater reliability.
The MCM8A10 is equipped with a chip enable (E) and eight separate write
enable (W0 – W7) inputs, allowing for greater system flexibility.
• Single 5 V ± 5% Power Supply
• Fast Access Times: 15 ns
• Three–State Outputs
• Fully TTL Compatible
• High Board Density SIMM Package
• Bit Operation: Eight Separate Write Enables, One for Each Bit
• High Quality Six–Layer FR4 PWB with Separate Internal Power and
Ground Planes
PIN NAMES
A0 – A19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Address Inputs
W0 – W7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write Enables
E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chip Enable
D0 – D7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data Inputs
Q0 – Q7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data Outputs
PD0 – PD2 . . . . . . . . . . . . . . . . . . . . . . . . . Package Density
DAISY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pins Single Net
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 5 V Power Supply
VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ground
For proper operation of the device, VSS must be connected
to ground.
Order this document
by MCM8A10/D
MCM8A10
PIN ASSIGNMENT
TOP VIEW
72-LEAD SIMM – CASE TBD
A1 2
VSS 4
A3 6
A5 8
A7 10
VCC 12
A9 14
D0 16
VSS 18
W1 20
Q1 22
A11 24
VCC 26
DAISY 28
D2 30
VSS 32
W3 34
Q3 36
1 A0
3 A2
5 VCC
7 A4
9 A6
11 VSS
13 A8
15 Q0
17 W0
19 VCC
21 D1
23 A10
25 VSS
27 DAISY
29 Q2
31 W2
33 VCC
35 D3
PD1 38
VCC 40
Q4 42
W4 44
VCC 46
D5 48
A21 50
A19 52
VCC 54
A17 56
A15 58
VSS 60
A13 62
Q6 64
W6 66
VCC 68
D7 70
E 72
37 PD0
39 VSS
41 PD2
43 D4
45 VSS
47 W5
49 Q5
51 A20
53 VSS
55 A18
57 A16
59 A14
61 VCC
63 A12
65 D6
67 VSS
69 W7
71 Q7
This document contains information on a new product. Specifications and information herein are subject to change without notice.
10/30/96
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MCM8A10
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