Voltage And Current Specifications - Intel Xeon Datasheet

Table 9.

Voltage and Current Specifications

Symbol
VID range VID range for Intel® Xeon™
processor with 800 MHz system bus
V V for Intel® Xeon™ processor
CC CC
with 800 MHz system bus FMB
processor
VID VID step size during a transition
Transition
Total allowable DC load line shift
from VID steps
V Front Side Bus termination voltage
TT
(DC specification)
Front Side Bus termination voltage
(AC & DC specification)
I I for Intel® Xeon™ processor with
CC CC
800 MHz system bus with multiple
VIDs
2.80 - 3.60 GHz
FMB
I Front Side Bus end-agent V
TT
current
I Front Side Bus mid-agent V
TT
current
I I for PLL power pins
CC_VCCA CC
I I for PLL power pins
CC_VCCIOPLL CC
I I for GTLREF pins
CC_GTLREF CC
I I Stop Grant for Intel® Xeon™
SGNT CC
I processor with 800 MHz system bus
SLP
2.80 GHz - FMB
I I TCC Active
TCC CC
I I for Intel® Xeon™ processor with
CC_TDC CC
800 MHz system bus
Thermal Design Current
2.80 - 3.60 GHz
FMB
NOTES:
1. Unless otherwise noted, all specifications in this table apply to all processors. These specifications are based on silicon
characterization, however they may be updated as further data becomes available. Listed frequencies are not necessarily
committed production frequencies.
2. Individual processor VID values may be calibrated during manufacturing such that two devices at the same speed may have
different VID settings.
3. These voltages are targets only. A variable voltage source should exist on systems in the event that a different voltage is
required. See Section 2.4
4. The voltage specification requirements are measured across vias on the platform for the VCCSENSE and VSSSENSE pins
close to the socket with a 100 MHz bandwidth oscilloscope, 1.5 pF maximum probe capacitance, and 1 MΩ minimum
impedance. The maximum length of ground wire on the probe should be less than 5 mm. Ensure external noise from the system
is not coupled in the scope probe.
5. Refer to Table 10 and corresponding
V associated with any particular current. Failure to adhere to this specification can shorten processor lifetime.
CC_MAX
6. Minimum V and maximum I
CC
I is specified at the relative V
CC_MAX
10 ms. Refer to Figure 2 for further details on the average processor current draw over various time durations.
Datasheet
Parameter
1.2875
See
1.176
1.140
TT
TT
for more information.
Figure 4. The processor should not be subjected to any static V
are specified at the maximum processor case temperature (T
CC
point on the V
CC_MAX
Intel® Xeon™ Processor with 800 MHz System Bus
Min Typ
Table 10 and VID - I
CC
Figure 4
1.20
1.20
load line. The processor is capable of drawing I
CC
Max Unit
1.4000 V
(max) * 1.25 mΩ V 3, 4, 5, 6, 7
±12.5 mV
450 mV
1.224 V
1.260 V
100 A
120 A
4.8 A
1.5 A
120 mA
100 mA
200 µA
A
50
I A
CC
85 A
105 A
level that exceeds the
CC
) shown in Table
CASE
CC_MAX
1
Notes
2,3
8
9
10
10, 11
6, 19
6, 7, 20
12
13
14
14
15
7,16
17
18,19
7,18,20
23.
for up to
23