MSM514262 查看數據表（PDF） - Oki Electric Industry

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MSM514262

262,144-Word x 4-Bit Multiport DRAM

Oki Electric Industry 

¡ Semiconductor

MSM514262

Write Cycle (Early Write)

tRC

tRAS

tRP

RAS VIH –

tAR

VIL –

tCSH

tCRP

tRCD

tRSH

tCPN

CAS VIH –

tCAS

VIL –



,
, A0 - A8

VIH –

VIL –

WB/WE

VIH –

VIL –

DT/OE

VIH –

VIL –

tRAD

tASR tRAH

Row Address

tRAL

tASC

tCAH

Column Address

tWSR tRWH

*1

tTHS tTHH

tWCS

tWCH

tWP

tWCR

tRWL

tCWL

tFHR

tFSR tRFH

tFSC

tCFH

, DSF

VIH –

VIL –

IN

VIH –

VIL –

W1/IO1 -

W4/IO4

OUT

VOH–

VOL –

tMS tMH

WM1 Data

tDS

tDH

Valid Data-in

tDHR

Open

"H" or "L"

*1 WB/WE

0

1

WM1 data:

W1/IO1 - W4/IO4

WM1 data

Don’t Care

0: Write Disable

1: Write Enable

Cycle

Write per Bit

Normal Write

11/45

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