WS256K64-XG4WX Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – 256Kx64 SRAM MODULE

WS256K64-XG4WX
256Kx64 SRAM MODULE ADVANCED*
FEATURES
s Access Times 20, 25, 35ns
s MIL-STD-883 Compliant Devices Available
s Packaging:
• 116 lead, 40mm, Hermetic CQFP (Package 504)
s Organized as 256Kx64, User Configurable as 512Kx32 or
1Mx16.
s Data I/O Compatible with 3.3V devices
s 2V Data Retention devices available
s Commercial, Industrial and Military Temperature Range
s 5 Volt Power Supply
s Low Power CMOS
s TTL Compatible Inputs and Outputs
s Weight
WS256K64-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.
FIG. 1 PIN CONFIGURATION FOR WS256K64-XG4WX
BLOCK DIAGRAM
4
TOP VIEW
WE1 CS1
WE2 CS2
WE3 CS3
WE4 CS4
OE
A0-17
256K x 16
256K x 16
256K x 16
256K x 16
I/O3
16
I/O4
17
I/O5
18
I/O6
19
I/O7
20
GND
21
I/O8
22
I/O9
23
I/O10
24
I/O11
25
I/O12
26
I/O13
27
I/O14
28
I/O15
29
GND
30
I/O16
31
I/O17
32
I/O18
33
I/O19
34
I/O20
35
I/O21
36
I/O22
37
I/O23
38
GND
39
I/O24
40
I/O25
41
I/O26
42
I/O27
43
I/O28
44
102
I/O60
101
I/O59
16
100
I/O58
99
I/O57
98
I/O56
I/O0-15
97
GND
96
I/O55
95
I/O54
94
I/O53
93
I/O52
92
I/O51
91
I/O50
90
I/O49
89
I/O48
88
GND
87
I/O47
86
I/O46
85
I/O45
84
I/O44
83
I/O43
82
I/O42
81
I/O41
80
I/O40
79
GND
78
I/O39
77
I/O38
76
I/O37
75
I/O36
74
I/O35
16
I/O16-31
16
I/O32-47
16
I/O48-63
PIN DESCRIPTION
I/O0-63 Data Inputs/Outputs
A0-17 Address Inputs
WE1-4 Write Enables
CS1-4
Chip Selects
OE Output Enable
VCC
Power Supply
GND
Ground
September 1998
1
White Microelectronics • Phoenix, AZ • [phone]