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| K4T51043QE Datasheet, PDF (28/45 Pages) Samsung semiconductor – 512Mb E-die DDR2 SDRAM Specification | |||
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K4T51043QE
K4T51083QE
K4T51163QE
DDR2 SDRAM
DQS
DQS
VDDQ
tDS tDH
nominal
line
VIH(ac) min
VIH(dc) min
VREF to ac
region
VREF(dc)
tangent
line
tDS tDH
tangent
line
VIL(dc) max
VIL(ac) max
nominal
line
VSS
âTF
VREF to ac
region
âTR
Setup Slew Rate
Rising Signal=
tangent
line[Vih(ac)min
âTR
-
VREF(dc)]
Setup Slew Rate
Falling Signal =
tangent line[VREF(dc) - Vil(ac)max]
âTF
Figure 7 - IIIustration of tangent line for tDS (differential DQS, DQS)
28 of 45
Rev. 1.8 July 2007
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