White Electronic Designs
WS128K32-XG2TXE
ADVANCED*
128Kx32 SRAM MULTICHIP PACKAGE, RADIATION TOLLERANT
FEATURES
Access Times of 35, 45, 55ns
Packaging
• 68 lead, 22.4mm CQFP (G2T), 4.57mm (0.180"),
(Package 509)
Organized as 128Kx32; User Configurable as
256Kx16 or 512Kx8
Low Power Data Retention
Commercial, Industrial and Military Temperature
Ranges
5V Power Supply
Low Power CMOS
* This product is under development, is not qualified or characterized and is subject to
change or cancellation without notice.
TTL Compatible Inputs and Outputs
Built in Decoupling Caps and Multiple Ground Pins
for Low Noise Operation
Weight
WS128K32-XG2TXE – 8 grams typical
Radiation tolerant with epitaxial layer on die.
6T memory cells provide excellent protection
against soft errors
FIGURE 1 – PIN CONFIGURATION FOR WS128K32N-XG2TXE
Top View
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
Pin Description
I/O
0-31
A
0-16
WE
1-4
#
CS
1-4
#
OE#
V
CC
GND
NC
Data Inputs/Outputs
Address Inputs
Write Enables
Chip Selects
Output Enable
Power Supply
Ground
Not Connected
9 8 7 6 5 4
I/O
0
I/O
1
I/O
2
I/O
3
I/O
4
I/O
5
I/O
6
I/O
7
GND
I/O
8
I/O
9
I/O
10
I/O
11
I/O
12
I/O
13
I/O
14
I/O
15
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
3 2 1 68 67 66 65 64 63 62 61
I/O
16
I/O
17
I/O
18
I/O
19
I/O
20
I/O
21
I/O
22
I/O
23
GND
I/O
24
I/O
25
I/O
26
I/O
27
I/O
28
I/O
29
I/O
30
I/O
31
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
The White 68 lead G2T CQFP fills
the same fit and function as the
JEDEC 68 lead CQFJ or 68 PLCC.
But the G2T has the TCE and lead
inspection advantage of the CQFP
form.
OE#
A
0-16
Block Diagram
WE
1
# CS
1
#
WE
2
# CS
2
#
WE
3
# CS
3
#
WE
4
# CS
4
#
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
NC
NC
128K x 8
128K x 8
128K x 8
128K x 8
8
8
8
8
I/O
0-7
I/O
8-15
I/O
16-23
I/O
24-31
December 2000
Rev. 0
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
