Datasheet

Electrical Specifications
18 Datasheet
2.6.2 DC Voltage and Current Specification
NOTES:
1. Each processor is programmed with a maximum valid voltage identification value (VID),
which is set at manufacturing and can not be altered. Individual maximum VID values are
calibrated during manufacturing such that two processors at the same frequency may have
different settings within the VID range. Note that this differs from the VID employed by the
processor during a power management event (Thermal Monitor 2, Enhanced Intel
SpeedStep
®
technology, or Extended HALT State).
2. Unless otherwise noted, all specifications in this table are based on estimates and
simulations or empirical data. These specifications will be updated with characterized data
from silicon measurements at a later date.
3. These voltages are targets only. A variable voltage source should exist on systems in the
event that a different voltage is required. See Section 2.3 and Table 2 for more
information.
4. The voltage specification requirements are measured across VCC_SENSE and VSS_SENSE
lands at the socket with a 100 MHz bandwidth oscilloscope, 1.5 pF maximum probe
capacitance, and 1 MΩ minimum impedance. The maximum length of ground wire on the
probe should be less than 5 mm. Ensure external noise from the system is not coupled into
the oscilloscope probe.
Table 4. Voltage and Current Specifications
Symbol Parameter Min Typ Max Unit
Notes
2, 10
VID Range VID
0.850
0
—1.3625V1
Core V
CC
Processor Number
(6 MB Cache):
E8500
E8400
E8200
E8190
V
CC
for
775_VR_CONFIG_06:
3.16 GHz
3 GHz
2.66 GHz
2.66 GHz
Refer to Table 5,
Figure 1
V
3, 4,
5
V
CC_BOOT
Default V
CC
voltage for initial power up — 1.10 — V
V
CCPLL
PLL V
CC
- 5% 1.50 + 5%
I
CC
Product Number
(6 MB Cache):
E8500
E8400
E8200
E8190
I
CC
for
775_VR_CONFIG_06:
3.16 GHz
3 GHz
2.66 GHz
2.66 GHz
——
75
75
75
75
A6
V
TT
FSB termination voltage
(DC + AC specifications)
1.045 1.10 1.155 V 7, 8
VTT_OUT_LEFT
and
VTT_OUT_RIGHT
I
CC
DC Current that may be drawn from
VTT_OUT_LEFT and VTT_OUT_RIGHT per
land
——580mA
I
TT
I
CC
for V
TT
supply before V
CC
stable
I
CC
for V
TT
supply after V
CC
stable
——
4.5
4.6
A9
I
CC_VCCPLL
I
CC
for PLL land ——130mA
I
CC_GTLREF
I
CC
for GTLREF — — 200 µA