IS42SM Просмотр технического описания (PDF) - Integrated Silicon Solution

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производитель

IS42SM

1M x 16Bits x 4Banks Mobile Synchronous DRAM

Integrated Silicon Solution 

Figure3: Simplified State Diagram

IS42SM/RM/VM16400K

EXTENDED

MODE

REGISTER

SET

SELF

REFRESH

MODE

MRS

REGISTER

SET

IDLE

REF

CBR

REFRESH

DEEP

POWER

DOWN

WRITE

WRITE

SUSPEND

CKE ↓

CKE

WRITE

ROW

ACTIVE

CKE ↓

CKE

POWER

DOWN

ACTIVE

POWER

DOWN

READ

WRITE

READ

READ

CKE ↓

CKE

READ

SUSPEND

WRITE A

SUSPEND

CKE ↓

CKE

WRITE A

READ A

CKE ↓

CKE

READ A

SUSPEND

POWER

ON

PRECHARGE

PRE-

CHARGE

Rev. A | August 2012

www.issi.com - DRAM@issi.com

Automatic Sequence

Manual Input

5

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