edi8f32259v White Electronic Designs Corporation, edi8f32259v Datasheet

edi8f32259v

Manufacturer Part Number

edi8f32259v

Description

256kx32 Static Cmos, High Speed Module

Manufacturer

White Electronic Designs Corporation

Datasheet

1.EDI8F32259V.pdf (7 pages)

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256Kx32 Static RAM CMOS, High Speed Module

FEATURES

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

High Density Package with JEDEC Standard Pinouts

Single +3.3V (±10%) Supply Operation

Access Times: 12, 15, 20, and 25ns

Individual Byte Selects

Fully Static, No Clocks

72 Pin SIMM No. 175 (Angle)

72 Pin ZIP No. 176

72 Pin SIMM No. 354 (Straight)

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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#

DQ0-DQ31

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PIN NAMES

Address Inputs

Chip Enables

Write Enables

Output Enable

Common Data Input/Output

Power (+5V ±10%)

Ground

compatible and operate from a

EDI8F32259V

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(Presence Detect)

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edi8f32259v Summary of contents

Page 1

... White Electronic Designs Corp. reserves the right to change products or specifications without notice. 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. ...

Page 2

... D I OUT CC1 Data Lines CC1 Chip Enable Line HIGH Z I CC1 Write Control Line Note: These parameters are sampled, not 100% tested. 2 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com EDI8F32259V Sym Min Typ Max V 3.0 3.3 3 2.2 ...

Page 3

... EDI8F32259V 15ns 20ns 25ns Max Min Max Min Max 20 25 ...

Page 4

... WLQZ WHZ DVWH DVEH WHQX WLZ 4 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com EDI8F32259V 20ns 25ns Units Max Min Max Min Max ...

Page 5

... White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com EDI8F32259V � �� ...

Page 6

... 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

... Oct 2002 Rev. 0A 4.255 MAX. 3.984 .250 3.750 1.992 4.255 MAX. 3.984 .250 3.750 1.992 ALL DIMENSIONS ARE IN INCHES 7 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com EDI8F32259V .360 MAX. 110 .680 + MAX. REV.# .400 .225 .125 MIN. MIN. 110 .680 + MAX ...

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