Datasheet

Dual-Core Intel® Xeon® Processor 5000 Series Datasheet 27
Electrical Specifications
11. Minimum VCC and maximum ICC are specified at the maximum processor case temperature (TCASE)
shown in Table 6-1.
12. This specification refers to the total reduction of the load line due to VID transitions below the specified
VID.
13. Individual processor VID values may be calibrated during manufacturing such that two devices at the same
frequency may have different VID settings.
14. Baseboard bandwidth is limited to 20 MHz.
15. I
CC_TDC
is the sustained (DC equivalent) current that the processor is capable of drawing indefinitely and
should be used for the voltage regulator temperature assessment. The voltage regulator is responsible for
monitoring its temperature and asserting the necessary signal to inform the processor of a thermal
excursion. Please see the applicable design guidelines for further details. The processor is capable of
drawing I
CC_TDC
indefinitely. Refer to Figure 2-2 and Figure 2-3 for further details on the average processor
current draw over various time durations. This parameter is based on design characterization and is not
tested.
16. This specification is per-processor. This is a steady-state I
TT
current specification, which is applicable when
both V
TT
and V
CC
are high. This parameter is based on design characterization and is not tested. Please
refer to the I
TT
Analysis of System Bus Components - Bensley Platform Whitepaper for platform
implementation guidance.
17. I
CC_VTTOUT
is specified at 1.2 V.
18.I
CC_RESET
is specified while PWRGOOD and RESET# are asserted.
19. This specification is per-processor. This is a power-up peak current specification, which is applicable when
V
TT
is powered up and V
CC
is not. This parameter is based on design characterization and is not tested.
Notes:
1. Processor or Voltage Regulator thermal protection circuitry should not trip for load currents greater than
I
CC_TDC
.
2. Not 100% tested. Specified by design characterization.
Figure 2-2. Dual-Core Intel
®
Xeon
®
Processor 5000 Series (1066 MHz) Load Current
versus Time
125
130
135
140
145
150
155
0.01 0.1 1 10 100 1000
Time Duration (s)
Sustained Current (A)