Datasheet
Datasheet 29
Electrical Specifications
2.12 V
CC
Overshoot Specification
The Pentium 4 processor in the 775-land package 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.
Table 2-15. BSEL [2:0] and VID[5:0] DC Specifications
Symbol Parameter Max Unit Notes
1, 2
NOTES:
1. Unless otherwise noted, all specifications in this table apply to all processor frequencies.
2. These parameters are not tested and are based on design simulations.
R
ON
(BSEL) Buffer On Resistance 60 Ω —
R
ON
(VID) Buffer On Resistance 60 Ω —
I
OL
Max Land Current 8 mA —
I
LO
Output Leakage Current 200 µA
3
3. Leakage to V
SS
with land held at 2.5 V.
V
TOL
Voltage Tolerance V
TT
(max) V —
Table 2-16. BOOTSELECT DC Specifications
Symbol Parameter Min Typ Max Unit Notes
V
IL
Input Low Voltage — — 0.24 V
1
NOTES:
1. These parameters are not tested and are based on design simulations.
V
IH
Input High Voltage 0.96 — — V —
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