M2S56D20AKP View Datasheet(PDF) - Elpida Memory, Inc

Part Name

Description

Manufacturer

M2S56D20AKP

256M Double Data Rate Synchronous DRAM

Elpida Memory, Inc 

DDR SDRAM

E0338M10 (Ver.1.0)

(Previous Rev.1.54E)

Jan. '03 CP(K)

SIMPLIFIED STATE DIAGRAM

POWER

APPLIED

POWER PREA

ON

PRE

CHARGE

ALL

M2S56D20/ 30/ 40ATP

M2S56D20/ 30/ 40AKT

256M Double Data Rate Synchronous DRAM

SELF

REFRESH

MRS / EMRS

REFS

REFSX

MODE MRS / EMRS

REGISTER

SET

IDLE

REFA

AUTO

REFRESH

CKEL

Active

Power

Down

CKEH

ACT

CKEL

POWER

DOWN

CKEH

ROW

ACTIVE

BURST

STOP

WRITE

WRITE

READ

WRITEA READA

READ

WRITE

READ

READ

TERM

WRITEA

READA

READA

WRITEA

PRE

PRE

PRE

READA

PRE

CHARGE

Automatic Sequence

Command Sequence

14

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