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KM48C8000B, KM48C8100B CMOS <strong>DRAM</strong><br />
RAS - ONLY REFRESH CYCLE<br />
NOTE : W, OE, DIN = Don′t care<br />
DOUT = OPEN<br />
RAS<br />
CAS<br />
VIH -<br />
VIL -<br />
VIH -<br />
VIL -<br />
VIH -<br />
A<br />
VIL -<br />
tCRP<br />
tASR tRAH<br />
ROW<br />
ADDR<br />
CAS - BEFORE - RAS REFRESH CYCLE<br />
NOTE : OE, A = Don′t care<br />
RAS<br />
CAS<br />
VIH -<br />
VIL -<br />
VIH -<br />
VIL -<br />
VIH -<br />
W<br />
VIL -<br />
DQ0 ~ DQ3(7)<br />
VOH -<br />
VOL -<br />
tRPC<br />
tCP<br />
tRP<br />
tOFF<br />
tCSR<br />
tWRP<br />
tWRH<br />
tRAS<br />
tCHR<br />
tRC<br />
tRAS<br />
tRC<br />
OPEN<br />
tRP<br />
tRPC tCRP<br />
tRPC<br />
tRP<br />
Don′t care<br />
Undefined
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