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Datasheet

Electrical Specifications

NOTES:

The loadline specification includes both static and transient limits except for overshoot

allowed as shown in Section 2.5.3.

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

VCC Overshoot

The Celeron D 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.

Figure 1.

VCC Static and Transient Tolerance for 775_VR_CONFIG_05A and

775_VR_CONFIG_06 Processors

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

1020

506070

100

Icc [A]

Vcc Maximum

Vcc Typical

Vcc Minimum

Table 6.

Vcc Overshoot Specifications

Symbol

Parameter

Min

Max

Unit

Figure

Notes

VOS_MAX Magnitude of VCC overshoot above VID

—

0.050

NOTES:

Adherence to these specifications for the Celeron D processor is required to ensure reliable

processor operation.

TOS_MAX Time duration of VCC overshoot above VID

—

μs

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