RG82855GMESL72L Datasheet, PDF (172/213 Pages) Intel Corporation – Intel® 855GM/855GME Chipset Graphics and Memory Controller Hub (GMCH)

Electrical Characteristics
R
8.4
Symbol
Parameter
Min
Typ
Max
Unit Notes
I_VCCQSM
I_{SUS_VCCSM}
I_{SMVREF_0}
I_{SUS_SMVREF_0}
I_TTRC/RCOMP
I_{SUS_TTRC}
2.5 V DDR SDRAM System Memory
Clock Buffers Supply Current (DDR266
SDRAM)
2.5 V DDR SDRAM System Memory
Clock Buffers Supply Current (DDR333
SDRAM)
2.5 V DDR SDRAM System Memory
Interface Standby Supply Current
1.25 V DDR SDRAM System Memory
Interface Reference Voltage Supply
Current
1.25 V DDR SDRAM System Memory
Interface Reference Voltage Standby
Supply Current
1.25 V DDR SDRAM System Memory
Interface Resister Compensation
Voltage Supply Current
1.25 V DDR SDRAM System Memory
Interface Resister Compensation
Voltage Standby Supply Current
0.14
A
0.18
A
1
mA
0.05
mA
0.05
mA
40
mA
0
mA
NOTE: This spec is the Thermal Design Power and is the estimated maximum possible expected power
generated in a component by a realistic application. It is based on extrapolations in both hardware and
software technology over the life of the component. It does not represent the expected power
generated by a power virus. Studies by Intel indicate that no application will cause thermally significant
power dissipation exceeding this specification, although it is possible to concoct higher power synthetic
workloads that write but never read. Under realistic read/write conditions, this higher power workload
can only be transient and is accounted in the Icc (Max) spec.
Signal Groups
The signal description includes the type of buffer used for the particular signal:
Signal Type
AGTL+
DVO/AGP
Hub
SSTL_2
LVTTL
CMOS
LVDS
Analog
Ref
Description
Open Drain AGTL+ interface signal. Refer to the AGTL+ I/O Specification for
complete details. The Intel 855GM/855GME GMCH integrate most AGTL+ termination
resistors
DVO buffers, these are 1.5 V tolerant.
Compatible to Hub Interface 1.5
Stub Series Termination Logic compatible signals (2.5 V tolerant)
Low Voltage TTL compatible signals (3.3 V tolerant)
CMOS buffers (3.3 V tolerant)
Low Voltage Differential signal interface
Analog signal interface
Voltage reference signal
172
Datasheet