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| HY5PS12421BFP-E3 Datasheet, PDF (29/38 Pages) Hynix Semiconductor – 512Mb DDR2 SDRAM | |||
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Fig. a Illustration of nominal slew rate for tIS,tDS
1HY5PS12421B(L)FP
1HY5PS12821B(L)FP
1HY5PS121621B(L)FP
CK,DQS
CK, DQS
VDDQ
VIH(ac)min
tIS,
tIH,
tDS
tDH
tIS,
tIH,
tDS
tDH
VIH(dc)min
VREF(dc)
VIL(dc)max
VIL(ac)max
Vss
nominal
slew rate
nominal
slew rate
VREF to ac
region
Delta TF
Delta TR
Setup Slew Rate
Falling Signal
=
VREF(dc)-VIL(ac)max
Delta TF
Setup Slew Rate
Rising Signal
=
VIH(ac)min-VREF(dc)
Delta TR
Rev. 0.7 / Oct. 2007
29
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