Electrical Specifications
Figure 1.
VCC Static and Transient Tolerance for 775_VR_CONFIG_05A (Mainstream)
and for 775_VR_CONFIG_06 Processors
Icc [A]
0
10
20
30
40
50
60
70
80
90
100
VID - 0.000
VID - 0.019
VID - 0.038
VID - 0.057
VID - 0.076
VID - 0.095
VID - 0.114
VID - 0.133
VID - 0.152
VID - 0.171
VID - 0.190
VID - 0.209
VID - 0.228
Vcc Maximum
Vcc Typical
Vcc Minimum
NOTES:
1.
The loadline specification includes both static and transient limits except for overshoot
allowed as shown in Section 2.5.3.
2.
3.
This loadline specification shows the deviation from the VID set point.
The loadlines specify voltage limits at the die measured at the VCC_SENSE and
VSS_SENSE lands. Voltage regulation feedback for voltage regulator circuits must be taken
from processor VCC and VSS lands. Refer to the Voltage Regulator-Down (VRD) 10.1
Design Guide For Desktop and Transportable LGA775 Socket for socket loadline guidelines
and VR implementation details.
2.5.3
V
Overshoot
CC
The processor can tolerate short transient overshoot events where VCC exceeds the VID
voltage when transitioning from a high to low current load condition. This overshoot
cannot exceed VID + VOS_MAX (VOS_MAX is the maximum allowable overshoot voltage).
The time duration of the overshoot event must not exceed TOS_MAX (TOS_MAX is the
maximum allowable time duration above VID). These specifications apply to the
processor die voltage as measured across the VCC_SENSE and VSS_SENSE lands.
Table 6.
VCC Overshoot Specifications
Symbol
Parameter
Min
Max
Unit
Figure Notes
1
VOS_MAX Magnitude of VCC overshoot above VID
—
0.050
V
2
Time duration of VCC overshoot above
1
TOS_MAX
VID
—
25
µs
2
NOTES:
1. Adherence to these specifications for the Pentium 4 processor is required to ensure reliable processor
operation.
Datasheet
21
INTEL [ INTEL ]
