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Electrical Specifications

Datasheet

VTT must be provided via a separate voltage source and not be connected to VCC. This

specification is measured at the land.

Baseboard bandwidth is limited to 20 MHz.

10.

This is maximum total current drawn from VTT plane by only the processor. This

specification does not include the current coming from RTT (through the signal line). Refer

to the Voltage Regulator-Down (VRD) 11.0 Processor Power Delivery Design Guidelines For

Desktop LGA775 Socket to determine the total ITT drawn by the system. This parameter is

based on design characterization and is not tested.

11.

This is maximum total current drawn from VTT plane by only the processor. This

specification does not include the current coming from RTT (through the signal line). Refer

to the Voltage Regulator-Down (VRD) 11 Design Guide For Desktop and Transportable

LGA775 to determine the total ITT drawn by the system. This parameter is based on design

characterization and is not tested.

12.

Adherence to the voltage specifications for the processor are required to ensure reliable

processor operation.

NOTES:

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

allowed as shown in Section 2.6.3.

This table is intended to aid in reading discrete points on Figure 1.

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) 11 Design

Guide For Desktop and Transportable LGA775 for socket loadline guidelines and VR

implementation details.

Adherence to this loadline specification is required to ensure reliable processor operation.

Table 6.

VCC Static and Transient Tolerance

ICC (A)

Voltage Deviation from VID Setting (V)1, 2, 3, 4

Maximum Voltage

2.30 mΩ

Typical Voltage

2.40 mΩ

Minimum Voltage

2.50mΩ

0.000

-0.019

-0.038

-0.012

-0.031

-0.051

-0.023

-0.043

-0.063

-0.035

-0.055

-0.076

-0.046

-0.067

-0.088

-0.058

-0.079

-0.101

-0.069

-0.091

-0.113

-0.081

-0.103

-0.126

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