Datasheet
24 Datasheet
Electrical Specifications
6. 775_VR_CONFIG_04A and 775_VR_CONFIG_04B refer to voltage regulator configurations that are de-
fined in the Voltage Regulator Down (VRD) 10.1 Design Guide For Desktop LGA775 Socket.
7. Refer to Table 2-9 and Figure 2-2 for the minimum, typical, and maximum V
CC
allowed for a given current.
The processor should not be subjected to any V
CC
and I
CC
combination wherein V
CC
exceeds V
CC_max
for
a given current.
8. These frequencies will operate properly in a system designed for 775_VR_CONFIG_04B processors. The
power and Icc will be incrementally higher in this configuration due to the improved loadline and resulting
higher Vcc.
9. I
cc_max
is specified at V
CC_max
.
10. The current specified is also for AutoHALT State.
11. Icc Stop-Grant are specified at V
CC_max
.
12. The maximum instantaneous current the processor will draw while the thermal control circuit is active as in-
dicated by the assertion of PROCHOT# is the same as the maximum Icc for the processor.
13. V
TT
must be provided via a separate voltage source and not be connected to V
CC
. This specification is mea-
sured at the land.
14. Baseboard bandwidth is limited to 20 MHz.
15. These parameters are based on design characterization and are not tested.
16. This is maximum total current drawn from V
TT
plane by only the processor. This specification does not in-
clude the current coming from R
TT
(through the signal line). Refer to the Voltage Regulator Down (VRD) 10.1
Design Guide For Desktop LGA775 Socket to determine the total I
TT
drawn by the system.
Table 2-9. V
CC
Static and Transient Tolerance for 775_VR_CONFIG_04A Processors
Icc (A)
Voltage Deviation from VID Setting (V)
1, 2, 3
NOTES:
1. The loadline specification includes both static and transient limits except for overshoot allowed as shown in
Section 2.12.
2. This table is intended to aid in reading discrete points on Figure 2-2.
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 V
CC
and V
SS
lands. Refer to
the Voltage Regulator Down (VRD) 10.1 Design Guide For Desktop LGA775 Socket for socket loadline guide-
lines and VR implementation details.
Maximum Voltage
1.70 mΩ
Typical Voltage
1.75 mΩ
Minimum Voltage
1.80 mΩ
0 0.000 -0.025 -0.050
5 -0.009 -0.034 -0.059
10 -0.017 -0.043 -0.068
15 -0.026 -0.051 -0.077
20 -0.034 -0.060 -0.086
25 -0.043 -0.069 -0.095
30 -0.051 -0.078 -0.104
35 -0.060 -0.086 -0.113
40 -0.068 -0.095 -0.122
45 -0.077 -0.104 -0.131
50 -0.085 -0.113 -0.140
55 -0.094 -0.121 -0.149
60 -0.102 -0.130 -0.158
65 -0.111 -0.139 -0.167
70 -0.119 -0.148 -0.176
75 -0.128 -0.156 -0.185
78 -0.133 -0.162 -0.190