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EDI2CG472256V

8 Megabyte Sync/Sync Burst, Dual Key DIMM

White Electronic Designs Corporation 

White Electronic Designs

EDI2CG472256V

ADVANCED

Operation

Synchronous Write-Bank 1

Synchronous Read-Bank 1

Synchronous Write-Bank 2

Synchronous Read-Bank 2

Synchronous Write-Bank 3

Synchronous Read-Bank 3

Synchronous Write-Bank 4

Synchronous Read-Bank 4

Snooze Mode

SYNCHRONOUS ONLY - TRUTH TABLE

E1#

E2#

E3#

E4# GW#

G#

ZZ

L

H

H

H

L

H

L

L

H

H

H

H

L

L

H

L

H

H

L

H

L

H

L

H

H

H

L

L

H

H

L

H

L

H

L

H

H

L

H

H

L

L

H

H

H

L

L

H

L

H

H

H

L

H

L

L

X

X

X

X

X

X

H

CK

DQ

High-Z

High-Z

High-Z

High-Z

X

High-Z

ABSOLUTE MAXIMUM RATINGS*

Voltage on VCC Relative to VSS

VIN

Storage Temperature

Operating Temperature (Commercial)

-0.5V to +4.6V

-0.5V to VCC +0.5V

-55°C to +125°C

0°C to +70°C

Operating Temperature (Industrial)

Short Circuit Output Current

-40°C to +85°C

20 mA

*Stress greater than those listed under “Absolute Maximum Ratings” may

cause permanent damage to the device. This is a stress rating only and

functional operation of the device at these or any other conditions greater

than those indicated in operational sections of this specifications is not

implied. Exposure to absolute maximum rating conditions for extended

periods may affect reliability.

RECOMMENDED DC OPERATING CONDITIONS

Parameter

Supply Voltage

Supply Voltage

Input High

Input Low

Input Leakage

Output Leakage

Sym Min

VCC 3.14

VSS 0.0

VIH

2.0

VIL -0.3

ILI

-2

ILO

-2

Typ Max Units

3.3

3.6

V

0.0

0.0

V

3.0 VCC+0.3 V

0.0

0.8

V

1

2

µA

1

2

µA

Parameter

Output High

Output Low

Sym Max Min

VOH 2.4V

VOL

0.4V

Condition

IOH= -4mA

IOL= 8mA

DC ELECTRICAL CHARACTERISTICS - READ CYCLE

Description

Power Supply Current

SYM

Typ

9

10

12

15

Icc1

2.0

2.9

2.7

2.7

2.5

Power Supply Current Device

Selected, No Operation

Icc

875

1.8

1.8

1.3

1.3

Snooze Mode

IccZZ

500

700

700

700

700

CMOS Standby

Icc3

270

350

350

350

350

Clock Running-Deselect

IccK

900

1.1

1.1

1.0

1.0

Units

A

A

mA

mA

A

AC TEST CONDITIONS

Input Pulse Levels

Input and Output Timing Ref.

Output Test equivalencies

Vss to 3.0V

1.25V

AC TEST LOAD

DQ

Z0 = 50Ω

Z0 = 50 Ω

50 Ω

Fig. 1 Output Load Equivalent

Vt = 1.25V

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

July 1999

Rev 1

6

White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com

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