EDI8L32128C 查看數據表（PDF） - White Electronic Designs Corporation

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EDI8L32128C

128Kx32 CMOS High Speed Static RAM

White Electronic Designs Corporation 

White Electronic Designs

EDI8L32128C

128Kx32 CMOS High Speed Static RAM

FEATURES

n 128Kx32 bit CMOS Static

n Random Access Memory Array

• Fast Access Times: 12, 15, 17, 20, and 25ns

• Individual Byte Enables

• User Configurable Organization with Minimal

Additional Logic

• Master Output Enable and Write Control

• TTL Compatible Inputs and Outputs

• Fully Static, No Clocks

n Surface Mount Package

• 68 Lead PLCC, No. 99 (JEDEC MO-47AE)

• Small Footprint, 0.990 Sq. In.

• Multiple Ground Pins for Maximum Noise

Immunity

n Single +5V (±5%) Supply Operation

DESCRIPTION

The EDI8L32128C is a high speed, high performance,

four megabit density Static RAM organized as a

128Kx32 bit array.

Four Chip Enables, Write Control, and Output Enable

provide the user with a flexible memory solution. The

user may independently enable each of the four bytes,

and, with minimal additional peripheral logic, the unit

may be configured as a 256Kx16 or 512Kx8 array.

Fully asynchronous circuitry is used, requiring no clocks

or refreshing for operation and providing equal access

and cycle times for ease of use.

The EDI8L32128C, allows 4 megabits of memory to

be placed in less than 0.990 square inches of board

space; a savings of 0.885 square inches over four

standard 128Kx8 components.

NOTE: Solder Reflow temperature should not exceed 230°C

FIG. 1 PIN CONFIGURATION

TOP VIEW

PIN DESCRIPTION

AØ-16

Address Inputs

EØ-3 Chip Enables (One per Byte)

W

Master Write Enable

G

Master Output Enable

DQØ-31

VCC

VSS

Common Data Input/Output

Power (+5V±5%)

Ground

NC

No Connection

BLOCK DIAGRAM

NOTE: Pin 2 & 67 on the 64Kx32 (EDI8L3265C) and the 256Kx32 (EDI8L32256C) are word select pins.

August 2002 Rev. 6

ECO #15423

1

White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com

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