HM5264165F-75 Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HM5264165F-75

64M LVTTL interface SDRAM 133 MHz/100 MHz

Hitachi -> Renesas Electronics 

HM5264165F/HM5264805F/HM5264405F-75/A60/B60

Simplified State Diagram

SELF

REFRESH

SR ENTRY

SR EXIT

MODE

REGISTER

SET

MRS

IDLE

REFRESH

*1

AUTO

REFRESH

CKE

CKE_

ACTIVE

CLOCK

SUSPEND

CKE

CKE_

ACTIVE

BST

(on full page)

ROW

ACTIVE

IDLE

POWER

DOWN

BST

(on full page)

Write

WRITE

CKE_

WRITE

SUSPEND

CKE

WRITE

WRITE

WITH AP

WRITE

WITH

AP

READ

READ

WITH AP

READ

WITH

AP

READ

Read

CKE_

WRITE

READ

CKE

WRITE

WITH AP

READ

WITH AP

READ

SUSPEND

CKE_

WRITEA

SUSPEND

CKE

WRITEA

PRECHARGE

READA

PRECHARGE PRECHARGE

CKE_

READA

SUSPEND

CKE

POWER

APPLIED

POWER

PRECHARGE

ON

PRECHARGE

Automatic transition after completion of command.

Transition resulting from command input.

Note: 1. After the auto-refresh operation, precharge operation is performed automatically and

enter the IDLE state.

19

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