WMS128K8-XXX
HI-RELIABILITY PRODUCT
128Kx8 MONOLITHIC SRAM, SMD 5962-96691
FEATURES
■ Access Times 15, 17, 20, 25, 35, 45, 55ns
■ 32 pin, Rectangular Ceramic Leadless Chip Carrier
(Package 601)
■ Revolutionary, Center Power/Ground Pinout
JEDEC Approved
■ MIL-STD-883 Compliant Devices Available
■ Commercial, Industrial and Military Temperature Range
■ 5 Volt Power Supply
• 32 lead Ceramic SOJ (Package 101)
• 36 lead Ceramic SOJ (Package 100)
• 36 lead Ceramic Flat Pack (Package 226)
■ Low Power CMOS
■ Evolutionary, Corner Power/Ground Pinout
■ 2V Data Retention Devices Available
JEDEC Approved
(Low Power Version)
• 32 pin Ceramic DIP (Package 300)
• 32 lead Ceramic SOJ (Package 101)
• 32 lead Ceramic Flat Pack (Package 206)
■ TTL Compatible Inputs and Outputs
REVOLUTIONARY PINOUT
EVOLUTIONARY PINOUT
32 DIP
32 CSOJ (DE)
32 FLAT PACK (FE)
TOP VIEW
36 FLAT PACK
36 CSOJ
32 CSOJ (DR)
TOP VIEW
32 CLCC
TOP VIEW
TOP VIEW
A0
A1
1
32 A16
NC
A16
A14
A12
A7
1
32
VCC
NC
A0
1
2
3
4
5
6
7
8
9
36 NC
2
31 A15
30 NC
29 WE
28 A13
27 A8
35 A16
34 A15
33 A14
32 A13
31 OE
30 I/O7
29 I/O6
28 GND
2
31 A15
30 A14
29 A13
28 OE
27 I/O8
26 I/O7
25 GND
4
3 2 1 32 31 30
A1
A2
3
3
A2
A3
4
4
5
29
28
27
26
25
24
23
22
21
A7
A6
A5
A4
A3
A2
A1
A0
WE
A13
A8
A3
5
CS
5
6
CS
I/O0
I/O1
A6
6
I/O1
I/O2
6
7
A5
7
26 A9
7
8
A9
A4
8
25 A11
24 OE
23 A10
22 CS
21 I/O7
20 I/O6
19 I/O5
18 I/O4
17 I/O3
V
CC
8
9
A11
OE
A10
CS
V
CC
A3
9
GND
I/O3
I/O4
WE
A4
9
24
VCC
10
11
12
13
GND 10
I/O2 11
I/O3 12
WE 13
A4 14
A5 15
A6 16
A7 17
NC 18
27
VCC
A2
10
11
12
13
14
15
16
10
11
12
13
14
15
16
23 I/O6
22 I/O5
21 A12
20 A11
19 A10
18 A9
26 I/O5
25 I/O4
24 A12
23 A11
22 A10
21 A9
A1
A0
I/O0
I/O7
I/O0
I/O1
I/O2
GND
14 15 16 17 18 19 20
A5
A6
A7
17 A8
20 A8
19 NC
PIN DESCRIPTION
A0-16
I/O0-7
CS
Address Inputs
Data Input/Output
Chip Select
OE
Output Enable
Write Enable
+5.0V Power
Ground
WE
VCC
GND
1
February 2000 Rev. 3
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com