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

®

Lower byte early write waveform

tRAS

tRC

tRP

RAS

tRAD

tAWR

tRAL

tASR

tRAH

Address

Row Address

Column Address

tCRP

tRPC

UCAS

LCAS

WE

tASC

tCAH

tRCD

tCAS

tCSH

tCRP

tRSH

tCRP

tWCR

tWCS

tRWL

tCWL

tWP

tWCH

OE

Upper I/O

Lower I/O

tDHR

tDS

tDH

Data In

Write waveform

tRC

tRAS

tRP

RAS

tCRP

tCSH

tRCD

tRSH

tCAS

UCAS,

LCAS

Address

tAWR

tRAD

tASR

tRAH

Row Address

tRAL

tASC

tCAH

Col Address

tWCR

tRWL

tCWL

tWP

WE

tOEH

OE

tDHR

tOED

tDStDH

I/O

Data In

4/11/01; V.0.9.1

Alliance Semiconductor

P. 11 of 25

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