IS42S83200A datasheet(6/49 Pages) ISSI

Part #	IS42S83200A

Description	256 Mb Synchronous DRAM

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Manufacturer	ISSI [Integrated Silicon Solution, Inc]

Direct Link	http://www.issi.com

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6

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

Rev. D

11/01/05

ISSI®

IS42S83200A (4-bank x 8,388,608 - word x 8-bit)

IS42S16160A (4-bank x 4,194,304 - word x 16-bit)

COMMAND TRUTH TABLE

COMMAND

MNEMONIC CKE

n-1

CKE

n

/CS

/RAS

/CAS

/WE BA0,1

A10

/AP

A0-9,

11-12

note

Deselect

DESEL

H

X

H

X

No Operation

NOP

H

X

L

H

X

Row Address Entry &

Bank Activate

ACT

H

X

L

H

V

Single Bank Precharge

PRE

H

X

L

H

L

V

L

X

Precharge All Banks

PREA

H

X

L

H

L

X

H

X

Column Address Entry

& Write

WRITE

H

X

L

H

L

V

L

V

Column Address Entry

& Write with

Auto-Precharge

WRITEA

H

X

L

H

L

V

H

V

Column Address Entry

& Read

READ

H

X

L

H

L

H

V

L

V

Column Address Entry

& Read with

Auto-Precharge

READA

H

X

L

H

L

H

V

H

V

Auto-Refresh

REFA

H

L

H

X

Self-Refresh Entry

REFS

H

L

H

X

Self-Refresh Exit

REFSX

L

H

X

L

H

L

H

X

Burst Terminate

TBST

H

X

L

H

L

X

Mode Register Set

MRS

H

X

L

V

1

H=High Level, L=Low Level, V=Valid, X=Don't Care, n=CLK cycle number

NOTE:

1. A7-9,11-12=L, A0-A6 =Mode Address

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IS42S83200A Datasheet(PDF) 6 Page - Integrated Silicon Solution, Inc

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