W3HG64M72EER-AD7 Datasheet, PDF (5/14 Pages) White Electronic Designs Corporation – 512MB - 64Mx72 DDR2 SDRAM REGISTERED, w/PLL, VLP Mini-DIMM

White Electronic Designs
W3HG64M72EER-AD7
ADVANCED
OPERATING TEMPERATURE CONDITION
Parameter
Symbol
Rating
Units
Notes
Operating temperature
TOPER
0°C to 85°C
°C
V
Notes:
1. Operating temperature is the case surface temperature on the center/top side of the DRAM. Forthe measurement conditions, please refer to JEDEC JESD51 .2
2. At 0 - 85°C, operation temperature range, all DRAM specification will be supported.
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 + 125
VREF + 300
mV
VIL(DC)
-300
VREF - 125
mV
INPUT AC LOGIC LEVEL
All voltages referenced to VSS
Parameter
Symbol
Min
Max
Unit
AC Input High (Logic 1 ) Voltage (DDR2-400/533)
AC Input High (Logic 1) Voltage (DDR2-667)
AC Input Low (Logic 0) Voltage
VIH(AC)
VREF + 250
—
mV
VIH(AC)
VREF + 200
mV
VIL(AC)
—
VREF - 250
mV
December 2005
Rev. 1
5
White Electronic Designs Corporation • [phone] • www.wedc.com