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參數資料
| 型號： | WED8LM32129C-35ECTA |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | SRAM |
| 英文描述： | 128K X 32 MULTI DEVICE SRAM MODULE, 35 ns, CQFP68 |
| 封裝： | 23.88 MM, 3.56 MM HEIGHT, CERAMIC, QFP-68 |
| 文件頁數： | 1/6頁 |
| 文件大?。?/td> | 154K |
| 代理商： | WED8LM32129C-35ECTA |
HI-RELIABILITY PRODUCT
1
White Electronic Designs Corporation (602) 437-1520 www.whitedc.com
WED8LM32129C
128Kx32 SRAM MODULE
PRELIMINARY*
s Low Power CMOS
s TTL Compatible Inputs and Outputs
s Built in Decoupling Caps and Multiple Ground Pins for Low
Noise Operation
s Device is upgradeable to 512Kx32
* This data sheet describes a product under development, not fully
characterized, and is subject to change without notice.
FEATURES
s Access Times of 15, 17, 20, 25, 35, 45, 55ns
s Packaging
68 lead, 23.88mm Low Profile CQFP, 3.56mm (0.140")
s Organized as 128Kx32; User Configurable as 256Kx16 or
512Kx8
s Commercial, Industrial and Military Temperature Ranges
s 5 Volt Power Supply
July 1999 Rev. 0
128K x 8
8
I/O 0-7
CS1
128K x 8
8
I/O 8-15
2
128K x 8
8
I/O 16-23
3
128K x 8
8
I/O 24-31
4
A 0-16
OE
WE
CS
WE
CS
WE
CS
WE
12
3
4
BLOCK DIAGRAM
FIG. 1 PIN CONFIGURATION FOR WED8LM32129C-E
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
GND
I/O8
I/O9
I/O10
I/O11
I/O12
I/O13
I/O14
I/O15
V
CC
A
11
A
12
A
13
A
14
A
15
A
16
CS
1
OE
CS
2
NC
WE
2
WE
3
WE
4
NC
I/O16
I/O17
I/O18
I/O19
I/O20
I/O21
I/O22
I/O23
GND
I/O24
I/O25
I/O26
I/O27
I/O28
I/O29
I/O30
I/O31
NC
A
0
A
1
A
2
A
3
A
4
A
5
CS
3
GND
CS
4
WE
1
A
6
A
7
A
8
A
9
A
10
V
CC
TOP VIEW
The WEDC 68 lead CQFP fills
the same fit and function as the
JEDEC 68 lead CQFJ or 68
PLCC. But the CQFP has the
TCE and lead inspection
advantage of the CQFP form.
0.940"
PIN DESCRIPTION
I/O0-31
Data Inputs/Outputs
A0-16
Address Inputs
WE1-4
Write Enables
CS1-4
Chip Selects
OE
Output Enable
VCC
Power Supply
GND
Ground
NC
Not Connected
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