參數(shù)資料
型號(hào)： MCM32515SG25
廠商： MOTOROLA INC
元件分類： SRAM
英文描述： 512K x 32 Bit Fast Static RAM Module
中文描述： 2M X 8 MULTI DEVICE SRAM MODULE, 25 ns, ZMA72
封裝： SIMM-72
文件頁(yè)數(shù)： 1/8頁(yè)
文件大?。?/td> 79K
代理商： MCM32515SG25
MCM32515
1
Motorola, Inc. 1997
Advance Information
512K x 32 Bit
Fast Static RAM Module
The MCM32515 is a 16M bit static random access memory module organized
as 524,288 words of 32 bits. The module is offered in a 72–lead single in–line
memory module (SIMM). Four MCM6246 fast static RAMs, packaged in 36–lead
SOJ packages are mounted on a printed circuit board along with eight decoupling
capacitors.
The MCM6246 is a high–performance CMOS fast static RAM organized as
524,288 words of 8 bits. Static design eliminates the need for external clocks or
timing strobes, while CMOS circuitry reduces power consumption and provides
for greater reliability.
The MCM32515 is equipped with output enable (G
)
and four separate byte en-
able (E1 – E4) inputs, allowing for greater system flexibility. The G input, when
high, will force the outputs to high impedance. Ex high will do the same for byte x.
Single 5 V
±
10% Power Supply
Fast Access Times: 20/25 ns
Three–State Outputs
Fully TTL Compatible
JEDEC Standard Pinout
Power Requirement: 800/740 mA Maximum, Active AC
High Board Density SIMM Package
Byte Operation: Four Separate Chip Enables, One for Each Byte
High Quality Six–Layer FR4 PWB with Separate Internal Power and
Ground Planes
Incorporates Motorola’s State–of–the–Art Fast Static RAMs
A0 – A18
W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E1 – E4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DQ0 – DQ31
. . . . . . . . . . . . . . . . . . . . . .
VCC
. . . . . . . . . . . . . . . . . . . . . . . . . . .
VSS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PD0 – PD3
. . . . . . . . . . . . . . . . . . . . . . . .
NC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Address Inputs
Write Enable
Output Enable
Byte Enables
Data Input/Output
+ 5 V Power Supply
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Ground
Package Density
No Connect
For proper operation of the device, VSS must be connected
to ground.
PIN NAMES
This document contains information on a new product. Specifications and information herein are subject to change without notice.
Order this document
by MCM32515/D
SEMICONDUCTOR TECHNICAL DATA
MCM32515
PIN ASSIGNMENT
TOP VIEW
72 LEAD SIMM — CASE TBD
PD0
2
DQ1
DQ2
DQ3
VCC
A7
A8
A9
DQ4
DQ5
DQ6
DQ7
W
A14
E1
VSS
PD1
DQ8
DQ9
DQ10
A0
A1
A2
DQ12
DQ13
DQ14
DQ15
VSS
A15
E2
DQ11
19
21
23
25
27
29
1
3
5
7
9
11
13
15
17
20
22
24
26
28
30
32
4
6
8
10
12
14
16
18
31
DQ0
33
35
34
36
E3
A16
38
40
VSS
DQ16
DQ17
DQ18
DQ19
A10
A11
A12
A13
DQ20
DQ21
DQ22
DQ23
VSS
NC
NC
E4
G
A17
DQ24
DQ25
DQ27
A3
A4
A5
VCC
A6
DQ28
DQ29
DQ30
DQ31
DQ26
55
57
59
61
63
65
37
39
41
43
45
47
49
51
53
56
58
60
62
64
66
68
42
44
46
48
50
52
54
67
A18
NC
69
71
70
72
NC
PD2
NC
PD3
REV 2
4/7/97
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