IS42S16800A-7TI データシートの表示（PDF） - Integrated Silicon Solution

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IS42S16800A-7TI

16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM

Integrated Silicon Solution 

IS42S81600A, IS42S16800A, IS42S32400A

INITIALIZE AND LOAD MODE REGISTER

ISSI ®

T0

T1

CLK

tCK

tCKS tCKH

CKE

tCMH tCMS tCMH tCMS

COMMAND NOP

PRECHARGE

Tn+1

tCH

tCMH tCMS

AUTO

REFRESH

DQM/

DQML, DQMH

To+1

tCL

NOP

AUTO

REFRESH

A0-A9, A11

A10

BA0, BA1

ALL BANKS

SINGLE BANK

ALL BANKS

Tp+1

Tp+2

Tp+3

NOP

Load MODE

REGISTER

NOP

ACTIVE

tAS tAH

CODE

tAS tAH

CODE

ROW

ROW

BANK

DQ

T

tRP

tRFC

Power-up: VCC

and CLK stable

T = 100µs Min.

Precharge AUTO REFRESH

all banks

tRFC

AUTO REFRESH

tMRD

Program MODE REGISTER(2, 3, 4)

DON'T CARE

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

21

PRELIMINARYINFORMATION Rev. 00C

01/20/05

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