M2S56D20TP データシートの表示（PDF） - Mitsumi

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M2S56D20TP

256M Double Data Rate Synchronous DRAM

Mitsumi 

DDR SDRAM (Rev.0.0)

Sep.'99 Preliminary

SIMPLIFIED STATE DIAGRAM

MITSUBISHI LSIs

M2S56D20/ 30 TP

256M Double Data Rate Synchronous DRAM

POWER

APPLIED

POWER PREA

ON

PRE

CHARGE

ALL

SELF

REFRESH

MRS

MODE

REGISTER

SET

MRS

REFS

REFSX

IDLE

REFA

AUTO

REFRESH

CKEL

CKEH

Active

Power

Down

ACT

CKEL

POWER

DOWN

CKEH

ROW

ACTIVE

BURST

STOP

WRITE

READ

WRITE

READ

WRITEA READA

WRITE

READ

READ

TERM

WRITEA

READA

READA

WRITEA

PRE

PRE

PRE

READA

PRE

CHARGE

MITSUBISHI

ELECTRIC

Automatic Sequence

Command Sequence

12

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