Datasheet

Electrical Characteristics
R
Datasheet 169
8 Electrical Characteristics
8.1 Absolute Maximum Ratings
Table 43 lists the Intel 855GM/855GME GMCH maximum environmental stress ratings.
Functional operation at the absolute maximum and minimum is neither implied nor guaranteed.
Functional operating parameters are listed in the AC and DC tables.
Warning: Stressing the device beyond the “Absolute Maximum Ratings” may cause permanent damage.
These are stress ratings only. Operating beyond the “operating conditions” is not recommended
and extended exposure beyond “operating conditions” may affect reliability.
Table 43. Absolute Maximum Ratings
Symbol Parameter Min Max Unit Notes
Intel 855GM/855GME GMCH Common
T
die
Die Temperature under Bias 0 105 °C 1
T
storage
Storage Temperature -55 150 °C 2
VCC 1.2 V Core Supply Voltage with respect to VSS -0.3 1.65 V
VTTLF 1.05 V AGTL+ buffer DC Input Voltage with respect
to VSS
-0.3 1.55 V
VCCHL 1.2 V Hub Interface Supply Voltage with respect to
VSS
-0.3 1.65 V
VCCADAC 1.5 V DAC Supply Voltage with respect to VSS -0.3 1.65 V
VCCDVO 1.5 V Supply Voltage with respect to VSS -0.3 1.65 V
VCCDLVDS 1.5 V LVDS Digital power supply -0.3 1.65 V
VCCTXLVDS 2.5 V LVDS Data/Clock Transmitter Supply Voltage
with respect to VSS
-0.3 3.25 V
VCCALVDS 1.5 V LVDS Analog Supply voltage with respect to
VSS
-0.3 1.65 V
VCCSM 2.5 V DDR System Memory Data Buffers Supply
Voltage with respect to VSS
-0.3 3.25 V
VCCQSM 2.5 V DDR System Memory Clock Buffers Supply
Voltage with respect to VSS
-0.3 3.25 V
VCCASM
(DDR 200/266
SDRAM)
1.2 V DDR System Memory Logic Supply Voltage
(not connected to Core) with respect to VSS
-0.3 1.65 V
VCCGPIO 3.3 V GPIO Supply Voltage with respect to VSS -0.3 3.6 V