AS4LC4M4F1 View Datasheet(PDF) - Alliance Semiconductor

Part Name

Description

Manufacturer

AS4LC4M4F1

4M×4 CMOS DRAM (Fast Page) 3.3V Family

Alliance Semiconductor 

Fast page mode early write waveform

RAS

tCRP

CAS

tASR

Address

tRAH

tRCD

tCSH

tCAS

tRAD

Row

tAR

Column

WE

OE

tHDR

tDS

tDH

I/O

Data In

AS4LC4M4F1

®

tRASP

tASC

tWCS

Column

tPC

tWCH

tRWL

tCAH

tCP

tRSH

tRAL

Column

tCWL

tWP

tOEH

tOED

Data in

Data in

CAS before RAS refresh waveform

RAS

CAS

tRP

tRPC

tCP

tCSR

DQ

tRC

tRAS

tCHR

OPEN

WE = VIH

RAS only refresh waveform

RAS

CAS

Address

tASR

tCRP

Row address

tRAS

tRAH

WE = OE = VIH or VIL

tRC

tRP

tRPC

5/16/01; v.1.0 Restored

Alliance Semiconductor

P. 11 of 14

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