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W3H64M72E-XSBX Datasheet, PDF (23/30 Pages) White Electronic Designs Corporation – 64M x 72 DDR2 SDRAM 208 PBGA Multi-Chip Package | |||
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White Electronic Designs
W3H64M72E-XSBX
ADVANCED*
Parameter
Input High (Logic 1) Voltage
Input Low (Logic 0) Voltage
INPUT DC LOGIC LEVEL
All voltages referenced to VSS
Symbol
Min
Max
Unit
VIH(DC)
VREF + 0.1 25
VCCQ + 0.300
V
VIL(DC)
-0.300
VREF - 0.125
V
INPUT AC LOGIC LEVEL
All voltages referenced to VSS
Parameter
Symbol
Min
Max
Unit
AC Input High (Logic 1) Voltage DDR2-400 & DDR2-533
VIH(AC)
VREF + 0.250
â
V
AC Input High (Logic 1) Voltage DDR2-667
VIH(AC)
VREF + 0.200
â
V
AC Input Low (Logic 0) Voltage DDR2-400 & DDR2-533
VIL(AC)
â
VREF - 0.250
V
AC Input Low (Logic 0) Voltage DDR2-667
VIL(AC)
â
VREF - 0.200
V
White Electronic Designs Corp. reserves the right to change products or speciï¬cations without notice.
March 2006
Rev. 1
23
White Electronic Designs Corporation ⢠(602) 437-1520 ⢠www.wedc.com
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