Electrical Specifications
24
Datasheet, Volume 1
2.11.1
DC Voltage and Current Specification
Table 2-7.
Voltage and Current Specifications
Symbol
Parameter
Min
Typ
Max
Unit
Notes
1
Notes:
1.
Unless otherwise noted, all specifications in this table are based on estimates and simulations or empirical
data. These specifications will be updated with characterized data from silicon measurements at a later date
VID
VID range
0.8
1.375
V
2
2.
Each processor is programmed with a maximum valid voltage identification value (VID), which is set at
manufacturing and can not be altered. Individual maximum VID values are calibrated during manufacturing
such that two processors at the same frequency may have different settings within the VID range. Note that
this differs from the VID employed by the processor during a power management event (Adaptive Thermal
Monitor, Enhanced Intel SpeedStep
®
Technology, or Low Power States).
V
CC
Processor
Number
i7-990X
i7-980X
i7-980
i7-970
V
CC
for processor core
3.46 GHz
3.33 GHz
3.33 GHz
3.20 GHz
See
V
3,4
3.
The voltage specification requirements are measured across VCC_SENSE and VSS_SENSE lands at the
socket with a 100 MHz bandwidth oscilloscope, 1.5 pF maximum probe capacitance, and 1 M
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 into the oscilloscope probe.
4.
Refer to
for the minimum, typical, and maximum V
CC
allowed for a given current. The
processor should not be subjected to any V
CC
and I
CC
combination wherein V
CC
exceeds V
CC_MAX
for a given current.
V
TTA
Voltage for the analog portion of the
integrated memory controller, QPI link
and Shared Cache
V
5
5.
See
for details on V
TT
for details on the V
TT
Loadline
V
TTD
Voltage for the digital portion of the
integrated memory controller, QPI link
and Shared Cache
See
V
5
V
DDQ
Processor I/O supply voltage for DDR3
1.425
1.5
1.575
V
V
CCPLL
PLL supply voltage (DC + AC
specification)
1.71
1.8
1.89
V
I
CC
Processor
Number
i7-990X
i7-980X
i7-980
i7-970
I
CC
for processor
3.46 GHz
3.33 GHz
3.33 GHz
3.20 GHz
—
—
145
145
145
145
A
6
6.
I
CC_MAX
specification is based on the V
CC_MAX
loadline. Refer to
for details.
I
TTA
Current for the analog portion of the
integrated memory controller, QPI link
and Shared Cache
—
—
5
A
I
TTD
Current for the digital portion of the
integrated memory controller, QPI link
and Shared Cache
—
—
23
A
I
DDQ
Processor I/O supply current for DDR3
—
—
6
A
I
DDQ
S3
Processor I/O supply current for DDR3
while in S3
—
—
1
A
7
7.
This specification is based on a processor temperature, as reported by the DTS, of less than or equal to
T
CONTROL
–25.
I
CC_VCCPLL
PLL supply current (DC + AC specification)
—
—
1.1
A
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