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EDI8L32128C25AC 参数 Datasheet PDF下载

EDI8L32128C25AC图片预览
型号: EDI8L32128C25AC
PDF下载: 下载PDF文件 查看货源
内容描述: 128Kx32 CMOS高速静态RAM [128Kx32 CMOS High Speed Static RAM]
分类和应用: 存储内存集成电路静态存储器
文件页数/大小: 5 页 / 347 K
品牌: WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
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White Electronic Designs
128Kx32 CMOS High Speed Static RAM
FEATURES
128Kx32 bit CMOS Static
Random Access Memory Array
Fast Access Times: 12, 15, 17, 20, and 25ns
Individual Byte Enables
User Configurable Organization with Minimal
Additional Logic
Master Output Enable and Write Control
TTL Compatible Inputs and Outputs
Fully Static, No Clocks
68 Lead PLCC, No. 99 (JEDEC MO-47AE)
Small Footprint, 0.990 Sq. In.
Multiple Ground Pins for Maximum Noise
Immunity
EDI8L32128C
DESCRIPTION
The EDI8L32128C is a high speed, high performance,
four megabit density Static RAM organized as a 128Kx32
bit array.
Four Chip Enables, Write Control, and Output Enable
provide the user with a flexible memory solution. The user
may independently enable each of the four bytes, and,
with minimal additional peripheral logic, the unit may be
configured as a 256Kx16 or 512Kx8 array.
Fully asynchronous circuitry is used, requiring no clocks or
refreshing for operation and providing equal access and
cycle times for ease of use.
The EDI8L32128C, allows 4 megabits of memory to be
placed in less than 0.990 square inches of board space; a
savings of 0.885 square inches over four standard 128Kx8
components.
Surface Mount Package
Single +5V (±5%) Supply Operation
NOTE: Solder Reflow temperature should not exceed 230°C
FIG. 1 PIN CONFIGURATION
TOP VIEW
DQ16
NC
NC
E3#
E2#
E1#
E0#
NC
V
CC
NC
NC
G#
W#
A16
A15
A14
DQ15
9
8
7
6
5
4
3
2
1
68
67
66
65
64
63
62
61
PIN DESCRIPTION
AØ-16
EØ-3#
W#
G#
DQØ-31
V
CC
V
SS
NC
Address Inputs
Chip Enables (One per Byte)
Master Write Enable
Master Output Enable
Common Data Input/Output
Power (+5V±5%)
Ground
No Connection
DQ17
DQ18
DQ19
V
SS
DQ20
DQ21
DQ22
DQ23
V
CC
DQ24
DQ25
DQ26
DQ27
V
SS
DQ28
DQ29
DQ30
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
DQ14
DQ13
DQ12
V
SS
DQ11
DQ10
DQ9
DQ8
VCC
DQ7
DQ6
DQ5
DQ4
V
SS
DQ3
DQ2
DQ1
BLOCK DIAGRAM
A0-A16
G#
W#
E0#
E1#
E2#
E3#
17
128Kx32
Memory
Array
DQ0-DQ7
DQ8-DQ15
DQ16-DQ23
DQ24-DQ31
NOTE: Pin 2 & 67 on the 64Kx32 (EDI8L3265C) and the 256Kx32 (EDI8L32256C) are word select pins.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
August, 2002
Rev. 6
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
DQ31
A6
A5
A4
A3
A2
A1
A0
V
CC
A13
A12
A11
A10
A9
A8
A7
DQ0