M2V56S20TP データシートの表示（PDF） - Mitsumi

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M2V56S20TP

256M Synchronous DRAM

Mitsumi 

SDRAM (Rev.1.1)

Single Data Rate

Feb.2000

MITSUBISHI LSIs

M2V56S20/ 30/ 40/ TP -6, -7, -8

256M Synchronous DRAM

SIMPLIFIED STATE DIAGRAM

SELF

REFRESH

MODE

REGISTER

SET

MRS

REFS

REFSX

IDLE

REFA

AUTO

REFRESH

CLK

SUSPEND

CKEL

CKEH

ACT

CKEL

POWER

DOWN

CKEH

TBST

WRITE

ROW

ACTIVE

TBST

READ

CKEL

WRITE

WRITE

SUSPEND CKEH

WRITEA READA

READ

WRITE

READ

CKEL READ

SUSPEND

CKEH

WRITEA

WRITEA READA

READA

CKEL

WRITEA

WRITEA

SUSPEND CKEH

PRE

PRE

PRE

CKEL

READA

READA

CKEH SUSPEND

POWER

APPLIED

POWER

ON

PRE

PRE

CHARGE

Automatic Sequence

Command Sequence

MITSUBISHI ELECTRIC

12

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