WS128K64V-XG4WX
128Kx64 3.3V SRAM MODULE
FEATURES
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Access Times of 15, 17, 20, 25ns
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Packaging
鈥?116 lead, 40mm square, Hermetic CQFP (Package 504)
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Organized as 128Kx64, User Configurable as 256Kx32,
512Kx16 or 1Mx8.
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Commercial, Industrial and Military Temperature Ranges
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3 Volt Power Supply
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Low Power CMOS
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2V Data Retention Devices Available (Low Power Version)
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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
WF128K64V-XG4WX - 20 grams typical
* This data sheet describes a product that may or may not be under
development and is subject to change or cancellation without notice.
Note: Programming information available upon request.
ADVANCED*
FIG. 1
PIN CONFIGURATION FOR WF128K64V-XG4WX
BLOCK DIAGRAM
WE
1
CS
1
WE
2
CS
2
WE
x
CS
x
WE
8
CS
8
TOP VIEW
I/O
2
I/O
1
I/O
0
V
CC
WE
2
CS
2
NC
A
0
A
1
A
2
A
3
A
4
WE
1
CS
1
NC
CS
8
WE
8
A
5
A
6
A
7
A
8
A
9
NC
CS
7
WE
7
V
CC
I/O
63
I/O
62
I/O
61
OE
A
0-16
1
128K x 8
2
128K x 8
......
8
8
128K x 8
September 1998
I/O
29
I/O
30
I/O
31
V
CC
WE
3
CS
3
NC
NC
NC
NC
A
16
A
15
WE
4
CS
4
OE
CS
5
WE
5
A
14
A
13
A
12
A
11
A
10
NC
CS
6
WE
6
V
CC
I/O
32
I/O
33
I/O
34
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
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
GND
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
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
44
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
116
115
114
113
112
111
110
109
108
107
106
105
104
103
8
8
8
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
I/O
60
I/O
59
I/O
58
I/O
57
I/O
56
GND
I/O
55
I/O
54
I/O
53
I/O
52
I/O
51
I/O
50
I/O
49
I/O
48
GND
I/O
47
I/O
46
I/O
45
I/O
44
I/O
43
I/O
42
I/O
41
I/O
40
GND
I/O
39
I/O
38
I/O
37
I/O
36
I/O
35
I/O
0-7
I/O
8-15
I/O...
I/O
56-63
PIN DESCRIPTION
I/O
0-63
A
0-16
WE
1-8
CS
1-8
OE
V
CC
GND
NC
Data Inputs/Outputs
Address Inputs
Write Enables
Chip Selects
Output Enable
Power Supply
Ground
Not Connected
1
White Microelectronics 鈥?Phoenix, AZ 鈥?(602) 437-1520
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