WS128K32-XG2TXE Datasheet, PDF (1/6 Pages) White Electronic Designs Corporation – 128Kx32 SRAM MULTICHIP PACKAGE, RADIATION TOLLERANT

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
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
* This product is under development, is not qualified or characterized and is subject to
change or cancellation without notice.
FIGURE 1 – PIN CONFIGURATION FOR WS128K32N-XG2TXE
Top View
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
GND
I/O8
I/O9
I/O10
I/O11
I/O12
I/O13
I/O14
I/O15
10
60
11
59
12
58
13
57
14
56
15
55
16
54
17
53
18
52
19
51
20
50
21
49
22
48
23
47
24
46
25
45
26
44
2728 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
I/O16
I/O17
I/O18
I/O19
I/O20
I/O21
I/O22
I/O23
GND
I/O24
I/O25
I/O26
I/O27
I/O28
I/O29
I/O30
I/O31
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#
A0-16
Pin Description
I/O0-31
A0-16
WE1-4#
CS1-4#
OE#
VCC
GND
Data Inputs/Outputs
Address Inputs
Write Enables
Chip Selects
Output Enable
Power Supply
Ground
NC
Not Connected
Block Diagram
WE1# CS1#
WE2# CS2#
WE3# CS3#
WE4# CS4#
128K x 8
128K x 8
128K x 8
128K x 8
8
I/O0-7
8
I/O8-15
8
I/O16-23
8
I/O24-31
December 2000
Rev. 0
1
White Electronic Designs Corporation • [phone] • www.wedc.com