MSM514256C データシートの表示（PDF） - Oki Electric Industry

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MSM514256C

262,144-Word x 4-Bit DYNAMIC RAM : FAST PAGE MODE TYPE

Oki Electric Industry 

¡ Semiconductor

MSM514256C/CL

Fast Page Mode Read Modify Write Cycle

,
,
,
, RASVIH–

VIL –

tAR

tCSH

tRCD

tCAS

CAS VIH –

VIL –

tRAD

tRAH

tCAH

tASR

tASC

Address

VIH

VIL

–

–

Row

Column

tRWD

tRCS tCWD

tRASP

tPRWC

tCP

tCAS

tCP

tRSH

tCAS

tRP

tCRP

tASC

tCAH

Column

tCWL

tRCS

tCPWD

tCWD

tASC

tRAL

tCAH

Column

tCWL

tRCS

tCPWD

tCWD

tRWL

tCWL

WE VIH –

VIL –

tAWD

tAWD

tAWD

tWP

tWP

tWP

tROH

OE

VIH

VIL

–

–

DQ

VI/OH–

VI/OL–

tRAC

tAA

tDS

tDH

tDS

tDH

tDH

tDS

tOEA

tOED

tCPA

tAA

tOEA

tOED

tCPA

tAA

tOEA

tOED

tCAC tOEZ

Out In

tCLZ

tOEZ

tCAC

Out In

tCLZ

tCAC

tOEZ

Out In

tCLZ

"H" or "L"

,
,
 RAS-Only Refresh Cycle

RAS VIH –

VIL –

tCRP

tRC

tRAS

tRP

tRPC

, CAS

VIH

VIL

–

–

tASR tRAH

VIH –

Address

VIL –

Row

tOFF

VOH –

DQ

VOL –

Open

Note: WE, OE = "H" or "L"

"H" or "L"

12/17

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