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| K4E660412D Datasheet, PDF (17/21 Pages) Samsung semiconductor – 16M x 4bit CMOS Dynamic RAM with Extended Data Out | |||
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K4E660412D,K4E640412D
RAS - ONLY REFRESH CYCLE*
NOTE : W, OE, DIN = Donâ²t care
DOUT = OPEN
VIH -
RAS
VIL -
VIH -
CAS
VIL -
VIH -
A
VIL -
tCRP
tASR tRAH
ROW
ADDR
tRC
tRAS
CMOS DRAM
tRPC
tRP
tCRP
CAS - BEFORE - RAS REFRESH CYCLE
NOTE : OE , A = Donâ²t care
VIH -
RAS
VIL -
VIH -
CAS
VIL -
VIH -
W
VIL -
DQ0 ~ DQ3(7)
VOH -
VOL -
tRP
tRPC
tCP
tCSR
tCHR
tWRP
tWRH
tRC
tRAS
tCEZ
OPEN
tRP
tRPC
Donâ²t care
Undefined
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