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參數資料
| 型號： | WS256K32-XXX |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 256Kx32 SRAM MODULE |
| 中文描述： | 256Kx32的SRAM模塊 |
| 文件頁數： | 1/7頁 |
| 文件大?。?/td> | 182K |
| 代理商： | WS256K32-XXX |
1
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
WS256K32-XXX
HI-RELIABILITY PRODUCT
256Kx32 SRAM MODULE
PRELIMINARY*
FEATURES
I
Access Times 20, 25, 35ns
I
MIL-STD-883 Compliant Devices Available
I
Packaging
66 pin, PGA Type, 1.185 inch square, Hermetic
Ceramic HIP (Package 401)
68 lead, 40mm, Hermetic CQFP (Package 501)
I
Organized as 256Kx32, User Configurable as 512Kx16
I
Upgradable to 512Kx32 for future expansion
I
Data I/O Compatible with 3.3V devices
I
2V Data Retention devices available
(WS256K32L-XXX low power version only)
I
Commercial, Industrial and Military Temperature Range
I
5 Volt Power Supply
I
Low Power CMOS
I
TTL Compatible Inputs and Outputs
I
Weight
WS256K32N-XHX - 13 grams typical
WS256K32-XG4X - 20 grams typical
*
This data sheet describes a product under development, not fully
characterized, and is subject to change without notice.
FIG. 1
PIN CONFIGURATION FOR WS256K32N-XHX
I/O
8
I/O
9
I/O
10
A
13
A
14
A
15
A
16
A
17
I/O
0
I/O
1
I/O
2
NC
NC
GND
I/O
11
A
10
A
11
A
12
V
CC
CS
1
NC
I/O
3
I/O
15
I/O
14
I/O
13
I/O
12
OE
NC
WE
1
I/O
7
I/O
6
I/O
5
I/O
4
I/O
24
I/O
25
I/O
26
A
6
A
7
NC
A
8
A
9
I/O
16
I/O
17
I/O
18
V
CC
NC
NC
I/O
27
A
3
A
4
A
5
WE
2
CS
2
GND
I/O
19
I/O
31
I/O
30
I/O
29
I/O
28
A
0
A
1
A
2
I/O
23
I/O
22
I/O
21
I/O
20
11 22 33 44 55 66
1 12 23 34 45 56
BLOCK DIAGRAM
TOP VIEW
PIN DESCRIPTION
I/O
0
-
31
Data Inputs/Outputs
A
0-17
Address Inputs
WE
1-2
Write Enables
CS
1-2
Chip Selects
OE
Output Enable
V
CC
Power Supply
GND
Ground
NC
Not Connected
256K x 16
16
I/O
0-15
CS
1
1
256K x 16
16
I/O
16-31
2
A
0-17
OE
WE
CS
2
WE
October 2000 Rev. 2
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