EDI8F8512C Datasheet, PDF (1/9 Pages) White Electronic Designs Corporation – 512Kx8 STATIC RAM CMOS, MODULE

White Electronic Designs
EDI8F8512C
512Kx8 STATIC RAM CMOS, MODULE
FEATURES
 512Kx8 bit CMOS Static
 Random Access Memory
• Access Times 20 through 100ns
• Data Retention Function (EDI8F8512LP)
• TTL Compatible Inputs and Outputs
• Fully Static, No Clocks
 High Density Packaging
• 36 Pin SIP, No. 63
• 32 Pin DIP, JEDEC Pinout, No. 91 (55-100ns)
• 32 Pin DIP, JEDEC Pinout, No. 183 (20-35ns)
 Single +5V (±10%) Supply Operation
*This product is subject to change without notice.
DESCRIPTION
The EDI8F8512C is a 4096K bit CMOS Static RAM based on four
128Kx8 or 256Kx4 (high speed) Static RAMs mounted on a multi-
layered epoxy laminate (FR4) substrate.
Functional equivalence to the monolithic four megabit Static RAM
is achieved by utilization of an on-board decoder that interprets the
higher order address(es) to select one of the128Kx8 or 256Kx4 Static
RAMs.
The 32 pin DIP pinout adheres to the JEDEC standard for the four
megabit device, to ensure compatibility with future monolithics.
A low power version with data retention (EDI8F8512LP) is also
available.
All inputs and outputs are TTL compatible and operate from a single
5V supply. Fully asynchronous, the EDI8F8512C requires no clocks
or refreshing for operation.
FIG. 1 PIN CONFIGURATIONS
NC 1
VCC
2
W# 3
DQ2 4
DQ3 5
DQ0 6
A1 7
A2 8
A3 9
A4 10
VSS 11
DQ5 12
A10 13
A11 14
A5 15
A13 16
A14 17
NC 18
E# 19
A15 20
A16 21
A12 22
A18 23
A6 24
DQ1 25
VSS 26
A0 27
A7 28
A8 29
A9 30
DQ7 31
DQ4 32
DQ6 33
A17 34
VCC 35
G# 36
8F8512C Pin Config.
A18 1
A16 2
A14 3
A12 4
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
DQ0 13
DQ1 14
DQ2 15
VSS 16
32 VCC
31 A15
30 A17
29 W#
28 A13
27 A8
26 A9
25 A11
24 G#
23 A10
22 E#
21 DQ7
20 DQ6
19 DQ5
18 DQ4
17 DQ3
8F8512C Pin Config
A0-A18
E#
W#
G#
DQ0-DQ7
VCC
VSS
NC
PIN NAMES
Address Inputs
Chip Enable
Write Enable
Output Enable
Common Data Input/Output
Power (+5V±10%)
Ground
No Connection
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July 2002
Rev. 13A
1
White Electronic Designs Corporation • [phone] • www.wedc.com