EDI8F32512C Datasheet, PDF (1/8 Pages) White Electronic Designs Corporation – 512Kx32 Static RAM CMOS, High Speed Module

EDI8F32512C
512Kx32 Static RAM CMOS, High Speed Module
FEATURES
DESCRIPTION
512Kx32 bit CMOS Static
Random Access Memory
Access Times: 15, 20, and 25ns
Individual Byte Selects
Fully Static, No Clocks
TTL Compatible I/O
High Density Package
72 Pin ZIP, No. 173
72 lead SIMM, No. 174 (Gold Option)
The EDI8F32512C is a high speed 16 megabit 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 (EØ-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 EDI8F32512C is offered in 72 pin ZIP and 72 lead SIMM
packages, which enable 16 megabits of memory to be placed
in less than 1.3 square inches of board space.
Common Data Inputs and Outputs
Single +5V (±10%) Supply Operation
Note: Consult factory for availability of:
• RoHS compliant products
• Vendor source control options
• Industrial temperature option
All inputs and outputs are TTL compatible and operate from
a single 5V supply. Fully asynchronous circuitry requires no
clocks or refreshing for operation and provides equal access
and cycle times for ease of use.
Pins PD1- PD4, are used to identify module memory density in
applications where alternate modules can be interchanged.
FIG. 1
Pin Names
Pin Configurations and Block Diagram
NC 2
PD3 4
PD0 6
DQ0 8
DQ1 10
DQ2 12
DQ3 14
VCC 16
A7 18
A8 20
A9 22
DQ4 24
DQ5 26
DQ6 28
DQ7 30
W# 32
A14 34
E0# 36
E2# 38
A16 40
VSS 42
DQ16 44
DQ17 46
DQ18 48
DQ19 50
A10 52
A11 54
A12 56
A13 58
DQ20 60
DQ21 62
DQ22 64
DQ23 66
VSS 68
NC 70
NC 72
1 NC
3 PD2
5 VSS
7 PD1
9 DQ8
11 DQ9
13 DQ10
15 DQ11
17 A0
19 A1
21 A2
23 DQ12
25 DQ13
27 DQ14
29 DQ15
31 VSS
33 A15
35 E1#
37 E3#
39 A17
41 G#
43 DQ24
45 DQ25
47 DQ26
49 DQ27
51 A3
53 A4
55 A5
57 VCC
59 A6
61 DQ28
63 DQ29
65 DQ30
67 DQ31
69 A18
71 NC
PD0, PD1, PD3= OPEN
PD2= VSS
A0-A18
E0#-E3#
W#
G#
DQ0-DQ31
VCC
VSS
NC
A0-A18
W#
G#
E0#
E1#
E2#
E3#
Address Inputs
Chip Enables
Write Enable
Output Enable
Common Data
Input/Output
Power (+5V±10%)
Ground
No Connectiona
512K
X8
DQ0-DQ7
512K
X8
DQ8-DQ15
512K
X8
DQ16-DQ23
512K
X8
DQ24-DQ31
8G32512C Pin Config.
8G32512C Blk Dia.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
March 2006
Rev. 9
1
White Electronic Designs Corporation • [phone] • www.wedc.com