EDI8F32259V12MMC WEDC [White Electronic Designs Corporation], EDI8F32259V12MMC Datasheet

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EDI8F32259V12MMC

Manufacturer Part Number
EDI8F32259V12MMC
Description
256Kx32 Static RAM CMOS, High Speed Module
Manufacturer
WEDC [White Electronic Designs Corporation]
Datasheet
256Kx32 Static RAM CMOS, High Speed Module
FEATURES
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PIN CONFIGURATIONS AND BLOCK DIAGRAM
FIG. 1
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
Oct 2002
Rev. 0A
256Kx32 bit CMOS Static RAM
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High Density Package with JEDEC Standard Pinouts
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Single +3.3V (±10%) Supply Operation
Access Times: 12, 15, 20, and 25ns
Individual Byte Selects
Fully Static, No Clocks
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72 Pin SIMM No. 175 (Angle)
72 Pin ZIP No. 176
72 Pin SIMM No. 354 (Straight)
TL
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DESCRIPTION
The EDI8F32259V is a high speed 8Mb Static RAM module
organized as 256K words by 32 bits. This module is constructed
from eight 256Kx4 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 EDI8F32259V is offered in 72 pin ZIP/SIMM package
which enables eight megabits of memory to be placed in less
than 1.3 square inches of board space.
All inputs and outputs are t
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.
The ZIP and SIMM modules contain four P
pins which are used to identify module memory density in
applications where alternate modules can be interchanged.
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White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
A0-A17
E0#-E3#
W#
G#
DQ0-DQ31
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V
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PIN NAMES
Address Inputs
Chip Enables
Write Enables
Output Enable
Common Data Input/Output
Power (+5V ±10%)
Ground
TL
compatible and operate from a
EDI8F32259V
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EDI8F32259V12MMC Summary of contents

Page 1

... Oct 2002 Rev. 0A DESCRIPTION The EDI8F32259V is a high speed 8Mb Static RAM module organized as 256K words by 32 bits. This module is constructed from eight 256Kx4 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 ...

Page 2

White Electronic Designs ABSOLUTE MAXIMUM RATINGS* Voltage on any pin relative Operating Temperature t (Ambient) A Commercial Storage Temperature, Plastic -55°C to +125°C Power Dissipation Output Current *Stress greater than those listed under "Absolute Maximum Ratings" may ...

Page 3

White Electronic Designs AC CHARACTERISTICS READ CYCLE Parameter Read Cycle Time Address Access Time Chip Enable Access Chip Enable to Output in Low Z (1) Chip Disable to Output in High Z (1) Output Hold from Address Change Output Enable ...

Page 4

White Electronic Designs Parameter Write Cycle Time Chip Enable to End of Write Address Setup Time Address Valid to End of Write Write Pulse Width Write Recovery Time Data Hold Time Write to Output in High Z (1) Data to ...

Page 5

White Electronic Designs FIG. 4 WRITE CYCLE CONTROLLED � �� �� � ���� � � FIG. 5 WRITE CYCLE CONTROLLED � � ���� �� �� � � White Electronic Designs Corp. reserves the right ...

Page 6

... White Electronic Designs ORDERING INFORMATION Part Number Speed (ns) 12 EDI8F32259V12MNC 15 EDI8F32259V15MNC 20 EDI8F32259V20MNC 25 EDI8F32259V25MNC 12 EDI8F32259V12MMC 15 EDI8F32259V15MMC 20 EDI8F32259V20MMC 25 EDI8F32259V25MMC 12 EDI8F32259V12MZC 15 EDI8F32259V15MZC 20 EDI8F32259V20MZC 25 EDI8F32259V25MZC NOTE: 1. For Gold SIMM change form EDI8F to EDI8G. PACKAGE DESCRIPTION PACKAGE NO. 175: 72 PIN ZIP ���� ���� ...

Page 7

White Electronic Designs PACKAGE NO. 176: 72 PIN ANGLED .125 DIA (2x .250 P1 .052 TYP. .062 R. 2.045 .062 R. PACKAGE NO. 354: 72 PIN SIMM STRAIGHT .125 DIA (2x .250 ...

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