BX80547PG3200FSL8Q6 Datasheet, PDF (33/105 Pages) Intel Corporation – Intel® Pentium® 4 Processor 6xxΔ Sequence and Intel® Pentium® 4 Processor Extreme Edition

Electrical Specifications
2.12 V_CC Overshoot Specification
The Pentium 4 processor can tolerate short transient overshoot events where V_CC exceeds the VID
voltage when transitioning from a high to low current load condition. This overshoot cannot exceed
VID + V_{OS_MAX} (V_{OS_MAX} is the maximum allowable overshoot voltage). The time duration of
the overshoot event must not exceed T_{OS_MAX} (T_{OS_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. Consult the Voltage Regulator-Down (VRD) 10.1 Design
Guide for Desktop LGA775 Socket for proper application of the overshoot specification.
Table 2-17. V_CC Overshoot Specifications
Symbol
Parameter
Min Typ
Max
Unit
Figure
V_{OS_MAX} Magnitude of V_CC overshoot above VID
—
—
0.050
V
2-4
T_{OS_MAX} Time duration of V_CC overshoot above VID
—
—
25
μs
2-4
Figure 2-4. V_CC Overshoot Example Waveform
Example Overshoot Waveform
VID + 0.050
V
OS
VID
T
OS
2.12.1
Time
T : Overshoot time above VID
OS
V : Overshoot above VID
OS
NOTES:
1. V_OS is measured overshoot voltage.
2. T_OS is measured time duration above VID.
Die Voltage Validation
Overshoot events from application testing on real processors must meet the specifications in
Table 2-17 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
should be taken with a 100 MHz bandwidth limited oscilloscope. Refer to the Voltage Regulator
Down (VRD) 10.1 Design Guide for Desktop LGA775 Socket for additional voltage regulator
validation details.
Datasheet
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