1HY5PS12421B(L)FP
1HY5PS12821B(L)FP
1HY5PS121621B(L)FP
Fig. -b Illustration of tangent line for tIS,tDS
CK, DQS
CK, DQS
tIS,
tDS
tIH,
tDH
tIS,
tDS
tIH,
tDH
VDDQ
nominal
line
VIH(ac)min
VIH(dc)min
tangent
line
VREF(dc)
VIL(dc)max
VIL(ac)max
Tangent
line
V
REF to ac
region
Nomial
line
Vss
Delta TR
Setup Slew Rate
Rising Signal
Tangent line[VIH(ac)min-VREF(dc)]
Delta TR
=
Delta TF
Tangent line[VREF(dc)-VIL(ac)max]
Delta TF
Setup Slew Rate
Falling Signal
=
Rev. 0.7 / Oct. 2007
30