Figure 7. IIIustration of nominal slew rate for tDS (differential DQS,DQS)
K4T51163QI
datasheet
DDR2 SDRAM
Rev. 1.0
K4T51083QI
K4T51043QI
V
SS
tDS
tDH
Setup Slew Rate
Setup Slew Rate
Rising Signal
Falling Signal
Δ
TF
Δ
TR
V
REF
(DC) - V
IL
(AC)max
Δ
TF
=
V
IH
(AC)min - V
REF
(DC)
Δ
TR
=
V
DDQ
V
IH
(AC)min
V
IH
(DC)min
V
REF
(DC)
V
IL
(DC)max
V
IL
(AC)max
nominal slew
rate
nominal
slew rate
V
REF
to ac
region
V
REF
to ac
region
tDS
tDH
tVAC
DQS
DQS
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