IS61C256AL_06 datasheet(2/12 Pages) ISSI | 32K x 8 HIGH-SPEED CMOS STATIC RAM

Part #	IS61C256AL

Description	32K x 8 HIGH-SPEED CMOS STATIC RAM

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Manufacturer	ISSI [Integrated Silicon Solution, Inc]

Direct Link	http://www.issi.com

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Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774

Rev. B

10/23/06

IS61C256AL

ISSI®

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28

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A14

A12

A7

A6

A5

A4

A3

A2

A1

A0

I/O0

I/O1

I/O2

GND

VDD

WE

A13

A8

A9

A11

OE

A10

CE

I/O7

I/O6

I/O5

I/O4

I/O3

PIN CONFIGURATION

28-Pin SOJ

PIN CONFIGURATION

28-Pin TSOP

PIN DESCRIPTIONS

A0-A14

Address Inputs

CE

Chip Enable Input

OE

Output Enable Input

WE

Write Enable Input

I/O0-I/O7

Bidirectional Ports

VDD

Power

GND

Ground

ABSOLUTE MAXIMUM RATINGS(1)

Symbol

Parameter

Value

Unit

VTERM

Terminal Voltage with Respect to GND

–0.5 to +7.0

V

TSTG

Storage Temperature

–65 to +150

°C

PT

Power Dissipation

1.5

W

IOUT

DC Output Current (LOW)

20

mA

Note:

1. 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 above those indicated in the operational

sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect

reliability.

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28

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8

OE

A11

A9

A8

A13

WE

VDD

A14

A12

A7

A6

A5

A4

A3

A10

CE

I/O7

I/O6

I/O5

I/O4

I/O3

GND

I/O2

I/O1

I/O0

A0

A1

A2

TRUTH TABLE

Mode

WE

CE

OE

I/O Operation

VDD Current

Not Selected

X

H

X

High-Z

ISB1, ISB2

(Power-down)

Output Disabled H

L

H

High-Z

ICC

Read

H

L

DOUT

ICC

Write

L

X

DIN

ICC

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IS61C256AL Datasheet(PDF) 2 Page - Integrated Silicon Solution, Inc

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