Intel CORE 2 DUO E4000 - 3-2008, Datasheet

Page: 25 / 122

Datasheet 25
Electrical Specifications
NOTES:
1.
The loadline specification includes both static and transient limits except for overshoot
allowed as shown in
Section 2.6.3 .
2. This loadline specification shows the deviation from the VID set point.
3. 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) 11.0
Processor Power Delivery Design Guidelines For Desktop LGA775 Socket for socket loadline
guidelines and VR implementation details.
2.6.3 V
CC
Overshoot
The 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.
Figure 2. V
CC
Static and Transient Tolerance for Processors with 2 MB L2 Cache
VID - 0.000
VID - 0.013
VID - 0.025
VID - 0.038
VID - 0.050
VID - 0.063
VID - 0.075
VID - 0.088
VID - 0.100
VID - 0.113
VID - 0.125
VID - 0.138
VID - 0.150
VID - 0.163
VID - 0.175
0 10 20 30 40 50 60 70
Icc [A]
Vcc [V
]
Vcc Maximum
Vcc Typical
Vcc Minimum
Table 8. V
CC
Overshoot Specifications
Symbol Parameter Min Max Unit Figure Notes
V
OS_MAX
Magnitude of V
CC
overshoot above VID — 50 mV 3
1
NOTES:
1. Adherence to these specifications is required to ensure reliable processor operation.
T
OS_MAX
Time duration of V
CC
overshoot above VID — 25 μ s 3
1