MSM514400DL-50 データシートの表示（PDF） - Oki Electric Industry

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MSM514400DL-50

1,048,576-Word x 4-Bit DYNAMIC RAM : FAST PAGE MODE TYPE

Oki Electric Industry 

¡ Semiconductor

MSM514400D/DL

Fast Page Mode Read Cycle

,
,
,
 RAS

VIH

VIL

–

–

CAS

VIH

VIL

–

–

VIH –

Address VIL –

WE

VIH

VIL

–

–

tAR

tCRP

tRCD

tRAD

tASR tRAH tASC

tCAS

tCSH

tCAH

Row

Column

tRCS

tRASP

tRHCP

tPC

tCP

tCAS

tRSH

tCP

tCAS

tASC tCAH

tRAL

tASC tCAH

Column

tRCH

tRCS tRCH

Column

tRCS

tRP

tCRP

tRCH

tAA

tAA

tAA

tRRH

tCPA

tCPA


,
,
,
OE

VIH

VIL

–

–

DQ

VOH –

VOL –

tOEA

tCAC

tRAC

tOFF

tOEZ

Valid

tCLZ

Data-out

tOEA

tCAC

tCLZ

tOFF

tOEZ

Valid

Data-out

tOEA

tCAC

tCLZ

tOFF

tOEZ

Valid

Data-out

"H" or "L"

Fast Page Mode Write Cycle (Early Write)

tRASP

tRP

RAS

VIH

VIL

–

–

tCRP

tAR

tRCD

tPC

tCP

tRHCP

tCRP

tRSH

tCP

CAS VIH –

tCAS

tCAS

tCAS

VIL –

tASR

tCSH

tRAH tASC tCAH

tASC tCAH

tASC tCAHtRAL

VIH –

Address VIL –

Row

Column

tRAD

tCWL

Column

tCWL

Column

tRWL

WE

VIH

VIL

–

–

tWCS

tWCH

tWP

tWCR

tWCS

tWCH

tWP

tWCS

tCWL

tWCH

tWP

tDS

tDH

tDS tDH

tDS tDH

DQ

VIH

VIL

–

–

Valid Data-in

tDHR

Valid

Data-in

Valid

Data-in

Note: OE = "H" or "L"

"H" or "L"

11/17

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