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White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
HI-RELIABILITY PRODUCT
WS128K32-XXX / EDI8C32128C
128Kx32 SRAM MODULE, SMD 5962-93187 & 5962-95595
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Commercial, Industrial and Military Temperature Ranges
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5 Volt Power Supply
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Low Power CMOS
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TTL Compatible Inputs and Outputs
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Built in Decoupling Caps and Multiple Ground Pins for Low
Noise Operation
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Weight:
WS128K32-XG2TX / EDI8C32128C-E - 8 grams typical
WS128K32-XH1X / EDI8C32128C-G - 13 grams typical
WS128K32-XG4TX - 20 grams typical
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All devices are upgradeable to 512Kx32
FEATURES
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Access Times of 15, 17, 20, 25, 35, 45, 55ns
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MIL-STD-883 Compliant Devices Available
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Packaging
66 pin, PGA Type, 1.075" square, Hermetic Ceramic HIP
(Package 400)
68 lead, 40mm Low Profile CQFP, 3.56mm (0.140")
(Package 502), Package to be developed.
68 lead, 22.4mm Low Profile CQFP, 4.57mm (0.180"),
(Package 509)
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Organized as 128Kx32; User Configurable as 256Kx16 or
512Kx8
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Low Power Data Retention - only available in G2T/E
package type
PIN DESCRIPTION
I/O
0-31
Data Inputs/Outputs
A
0-16
Address Inputs
WE
1-4
Write Enables
CS
1-4
Chip Selects
OE
Output Enable
V
CC
Power Supply
GND
NC
Not Connected
Ground
I/O
8
I/O
9
I/O
10
A
13
A
14
A
15
A
16
NC
I/O
0
I/O
1
I/O
2
WE
2
CS
2
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
CS
4
WE
4
I/O
27
A
3
A
4
A
5
WE
3
CS
3
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
TOP VIEW
BLOCK DIAGRAM
128K x 8
8
I/O
0-7
CS
1
1
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
2
WE
CS
3
WE
CS
4
WE
FIG. 1
PIN CONFIGURATION FOR WS128K32N-XH1X
AND EDI8C32128C-G
August 1999 Rev. 4
NOTE:
For non-SMD new designs, please use the WS128K32-
XXX part number for inquiries and orders.