iPEM
2.1 Gb SDRAM-DDR2
Austin Semiconductor, Inc.
AS4DDR232M64PBG
INPUT DC LOGIC LEVEL
All voltages referenced to Vss
Parameter
Symbol
Min
Max
Unit
VIH (DC)
VREF + 0.125 VCCQ + 0.300
Input High (Logic 1) Voltage
V
VIL (DC)
VREF - 0.125
Input Low (Logic 0) Voltage
-0.300
V
INPUT AC LOGIC LEVEL
All voltages referenced to Vss
Parameter
Symbol
Min
Max
Unit
V
IH (AC)
IH (AC)
VREF + 0.250
AC Input High (Logic 1) Voltage DDR2-400 & DDR2-533
AC Input High (Logic 1) Voltage DDR2-667
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V
V
VREF + 0.200
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V
V
V
VIL (AC)
VIL (AC)
VREF - 0.250
VREF - 0.200
ACInput Low (Logic 0) Voltage DDR2-400 & DDR2-533
AC Input Low (Logic 1) Voltage DDR2-667
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Austin Semiconductor, Inc.
●
Austin, Texas
●
512.339.1188
●
www.austinsemiconductor.com
AS4DDR232M64PBG
Rev. 1.3 6/09
22
AUSTIN [ AUSTIN SEMICONDUCTOR ]
