
20
Datasheet
Electrical Specifications
Table 2-3. Voltage and Current Specifications
Symbol
Parameter
Min
Typ
Max
Unit
Notes
VID range
VID
1.200
—
1.400
V
1
NOTES:
1.
Individual processor VID values may be calibrated during manufacturing such that two devices at the same speed may have different VID settings.
Processor number
Core Frequency
VCC
840
830
VCC for 775_VR_CONFIG_05B
processor (PRB = 1)
3.20 GHz
3GHz
V
2, 3, 4, 5
2.
These voltages are targets only. A variable voltage source should exist on systems in the event that a different voltage is required. See
Section 2.33.
The voltage specification requirements are measured across VCC_SENSE and VSS_SENSE lands at the socket with a 100 MHz bandwidth oscillo-
scope, 1.5 pF maximum probe capacitance, and 1 M
Ω 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 Table 2-5 and Figure 2-2 for the minimum, typical, and maximum VCC allowed for a given current. The processor should not be subjected to any VCC and ICC combination wherein VCC exceeds VCC_MAX for a given current.
820
805
VCC for 775_VR_CONFIG_05A
processor (PRB = 0)
2.80 GHz
2.66 GHz
V
ICC
840
830
ICC for 775_VR_CONFIG_05B Pentium
D processor (PRB = 1)
3.20 GHz
3GHz
——
125
A
8
820
805
ICC for 775_VR_CONFIG_05A Pentium
D processor (PRB = 0)
2.80 GHz
2.66 GHz
——
100
ICC_RESET
840
830
820
805
ICC when PWRGOOD and RESET# are
active
3.20 GHz
3GHz
2.80 GHz
2.66 GHz
——
125
106
A
9
ISGNT
840/830/820/805
ICC Stop-Grant
3.20/3/2.80/2.66 GHz
——
65
A
10, 11, 12
IENHANCED_HALT
840/830/820/805
ICC Enhanced Halt
3.20/3/2.80/2.66 GHz
——
50
A
ITCC
ICC TCC active
—
I
CC
A
13
VTT
VTT for 775_VTT_CONFIG_2 processors:
FSB termination voltage (DC+AC specifications)
1.14
1.20
1.26
V
14, 15
VTT_OUT ICC
DC Current that may be drawn from VTT_OUT per pin
—
580
mA
-
ITT
FSB termination current
—
4.7
A
ICC_VCCA
ICC for PLL lands
—
120
mA
ICC_VCCIOPLL
ICC for I/O PLL land
—
100
mA
ICC_GTLREF
ICC for GTLREF
—
200
μA