AS4C256K16E0 データシートの表示（PDF） - Alliance Semiconductor

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AS4C256K16E0

5V 256K×16 CMOS DRAM (EDO)

Alliance Semiconductor 

AS4C256K16E0

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Upper byte write cycle waveform

RAS

Address

UCAS

LCAS

WE

OE

Upper I/O

Lower I/O

tRC

tRAS

tRP

tRAD

tASR

tRAH

Row Address

tAWR

tRAL

Column Address

tCRP

tRCD

tCSH

tASC

tRSH

tCAH

tCAS

tCRP

tCRP

tCWL

tWP

tRPC

tRWL

tOEH

tDS

tDH

Data In

tOED

(OE controlled)

Lower byte write cycle waveform

RAS

Address

tASR

tRAD

tRAH

Row Address

LCAS

UCAS

tCRP

tCRP

WE

OE

Upper I/O

Lower I/O

tRC

tRAS

tAWR

tRAL

Column Address

tRCD

tCSH

tACS

tCAH

tCAS

tRSH

tCWL

tRWL

tWP

tOEH

tDS

tDH

Data In

(OE controlled)

tRP

tCRP

tRPC

4/11/01; v.1.1

Alliance Semiconductor

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