512Kx32 Static RAM CMOS, High Speed Module
FEATURES
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* This product is subject to change without notice.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
Aug, 2002
Rev. 8A
FIG. 1
512Kx32 bit CMOS Static RAM
Random Access Memory
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High Density Package
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Single +3.3V (±10%) Supply Operation
Pin Configurations and Block Diagram
Access Times: 15, 20, and 25ns
Individual Byte Selects
Fully Static, No Clocks
TTL Compatible I/O
72 Pin ZIP, No. 173
72 lead SIMM, No. 174 (Gold Option)
Common Data Inputs and Outputs
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DESCRIPTION
The EDI8F32512V is a high speed 16 Mb Static RAM
module organized as 512K words by 32 bits. This module is
constructed from four 512Kx8 Static RAMs in SOJ packages
on an epoxy laminate (FR4) board.
Four chip enables (E0#-E3#) are used to independently
enable the four bytes. Reading or writing can be executed on
individual bytes or any combination of multiple bytes through
proper use of selects.
The EDI8F32512V is offered in 72 pin ZIP and 72 lead SIMM
packages, which enable 16 Mb of memory to be placed in
less than 1.3 square inches of board space.
All inputs and outputs are TTL compatible and operate from a
single 3.3V supply. Fully asynchronous circuitry requires no
clocks or refreshing for operation and provides equal access
and cycle times for ease of use.
Pins PD0- PD3, are used to identify module memory density in
applications where alternate modules can be interchanged.
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
A0-A18
E0#-E3#
W#
G#
DQ0-DQ31
V
V
NC
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Pin Names
Power (+3.3V±10%)
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No Connectiona
Address Inputs
Common Data
Output Enable
Chip Enables
Write Enable
Input/Output
Ground
EDI8F32512V
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