Q6000 datasheet(21/98 Pages) INTEL

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Datasheet

Electrical Specifications

2.5.3

VCC Overshoot

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.

NOTES:

VOS is measured overshoot voltage.

TOS is measured time duration above VID.

2.5.4

Die Voltage Validation

Overshoot events on processor must meet the specifications in Table 6 when measured

across the VCC_SENSE and VSS_SENSE lands. Overshoot events that are < 10 ns in

duration may be ignored. These measurements of processor die level overshoot must

be taken with a bandwidth limited oscilloscope set to a greater than or equal to

100 MHz bandwidth limit.

Table 6.

VCC Overshoot Specifications

Symbol

Parameter

Min

Max

Unit

Figure

Notes

VOS_MAX Magnitude of VCC overshoot above VID

—

NOTES:

Adherence to these specifications is required to ensure reliable processor operation.

TOS_MAX

Time duration of VCC overshoot above

VID

—25

μs

Figure 2.

VCC Overshoot Example Waveform

Example Overshoot Waveform

Time [us]

VID - 0.000

VID + 0.050

VOS

TOS

TOS: Overshoot time above VID

VOS: Overshoot above VID

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