WMS128K8V-XXX
128Kx8 3.3V MONOLITHIC SRAM PRELIMINARY*
FEATURES
■ Access Times 15, 17, 20, 25, 35ns
■ MIL-STD-883 Compliant Devices Available
■ Commercial, Industrial and Military Temperature Range
■ 3.3 Volt Power Supply
■ Revolutionary, Center Power/Ground Pinout
JEDEC Approved
• 32 lead Ceramic SOJ (Package 101)
• 32 lead Ceramic Flat Pack (Package 220)**
■ Low Power CMOS
■ TTL Compatible Inputs and Outputs
■ Evolutionary, Corner Power/Ground Pinout
JEDEC Approved
*
This data sheet describes a product under development, not fully
characterized, and is subject to change without notice.
• 32 pin Ceramic DIP (Package 300)
** Package under developement.
■ 32 pin, Rectangular Ceramic Leadless Chip Carrier
(Package 601)
EVOLUTIONARY PINOUT
REVOLUTIONARY PINOUT
32 CSOJ (DR)
32 FLATPACK (FR)**
32 DIP (C)
32 CLCC
TOP VIEW
TOP VIEW
TOP VIEW
A0
A1
1
32 A16
31 A15
30 A14
29 A13
28 OE
27 I/O8
26 I/O7
2
A2
3
A3
4
CS
5
I/O1
I/O2
6
7
V
CC
SS
8
25
24
V
V
SS
CC
V
9
I/O3
I/O4
WE
A4
10
11
12
13
14
15
16
23 I/O6
22 I/O5
21 A12
20 A11
19 A10
18 A9
A5
A6
A7
17 A8
PIN DESCRIPTION
A0-16
I/O0-7
CS
Address Inputs
Data Input/Outputs
Chip Select
OE
Output Enable
Write Enable
+3.3V Power
Ground
WE
VCC
VSS
NC
Not Connected
1
June 2000 Rev. 3
White Electronic Designs Corporation • Phoenix, AZ • (602) 437-1520