AS4C256K16F0-25JC データシートの表示（PDF） - Alliance Semiconductor

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AS4C256K16F0-25JC

5V 256K X 16 CMOS DRAM (Fast Page Mode)

Alliance Semiconductor 

AS4C256K16FO

®

Fast page mode read waveform

RAS

UCAS,

LCAS

Address

WE

OE

I/O

tCRP

tASR

tRASP

tRP

tCSH

tRSH

tRCD

tCAS

tCP

tPC

tAR

tRAD

tRAH

tRAL

tASC

tCAH

Row

Col Address

Col Address

Col Address

tRCS

tRCH

tRCS

tRCH

tRRH

tOEA

tOEA

tRAC

tCLZ

tOEZ

tCAC

tAA

tOFF

tCAP

Data Out

Data Out

Data Out

Fast page mode byte read waveform

RAS

tCRP

UCAS

tCSH

tRCD

LCAS

tASR

Address

tCRP

tRAH

tRAD

tASC

Row

Column 1

tRASP

tCAS

tCP

tPC

tCAS

tCAH

tCAH

tASC

Column 2

WE

OE

Upper I/O

Lower I/O

tRCS

tRCH

tRCS

tAA

tRAC

tCAC

tCLZ

tOEA

tAA

tCAP

tCAC

tCLZ

tOFF

tOEZ

Data Out 1

tRSH

tCAS

tPC

tCP

tRAL

tASC

Column n

tRCS

tRCH

tOEA

tOFF

tOEZ

Data Out 2

tAA

tCAP

tCAC

tCLZ

tRP

tCRP

tCAS

tRPC

tCAH

tOEA

tOFF

tOEZ

Data Out n

4/11/01; V.0.9.1

Alliance Semiconductor

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