K4F660412D Datasheet, PDF(16/20 Page) Samsung semiconductor – 16M x 4bit CMOS Dynamic RAM with Fast Page Mode

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K4F660412D Datasheet, PDF (16/20 Pages) Samsung semiconductor – 16M x 4bit CMOS Dynamic RAM with Fast Page Mode

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K4F660412D,K4F640412D

RAS - ONLY REFRESH CYCLE

NOTE : W, OE, DIN = Donâ²t care

DOUT = OPEN

VIH -

RAS

VIL -

VIH -

CAS

VIL -

VIH -

VIL -

tCRP

tASR

tRAH

ROW

ADDR

tRC

tRAS

CMOS DRAM

tRP

tRPC

tCRP

CAS - BEFORE - RAS REFRESH CYCLE

NOTE : OE, A = Donâ²t care

VIH -

RAS

VIL -

VIH -

CAS

VIL -

VIH -

VIL -

DQ0 ~ DQ3(7)

VOH -

VOL -

tRP

tRPC

tCP

tCSR

tWRP

tCHR

tWRH

tOFF

tRC

tRAS

OPEN

tRP

tRPC

Donâ²t care

Undefined

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