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| K4T1G164QE-HCE7000 Datasheet, PDF (27/46 Pages) Samsung semiconductor – 1Gb E-die DDR2 SDRAM 60FBGA/84FBGA with Lead-Free & Halogen-Free (RoHS compliant) | |||
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K4T1G044QE
K4T1G084QE
K4T1G164QE
datasheet
Rev. 1.12
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
Setup Slew Rate
Rising Signal =
VIH(AC)min - VREF(DC)
âTR
Figure 7. IIIustration of nominal slew rate for tDS (differential DQS,DQS)
- 27 -
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