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| K4T51043QE Datasheet, PDF (26/45 Pages) Samsung semiconductor – 512Mb E-die DDR2 SDRAM Specification | |||
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K4T51043QE
K4T51083QE
K4T51163QE
DDR2 SDRAM
DQS
DQS
VDDQ
tDS tDH
tDS tDH
VIH(ac) min
VREF to ac
region
VIH(dc) min
VREF(dc)
VIL(dc) max
nominal slew
rate
VIL(ac) max
VSS
tVAC
nominal
slew rate
VREF to ac
region
âTF
Setup Slew Rate= VREF(dc) - Vil(ac)max
Falling Signal
âTF
âTR
SeRtiuspinSgleSwignRaalte=
Vih(ac)min - VREF(dc)
âTR
Figure 5 - IIIustration of nominal slew rate for tDS (differential DQS,DQS)
26 of 45
Rev. 1.8 July 2007
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