Datasheet

Electrical Specifications
68 Intel® Xeon® Processor 3400 Series Datasheet, Volume 1
7.9 DC Specifications
The processor DC specifications in this section are defined at the processor
pads, unless noted otherwise. See Chapter 8 for the processor land listings and
Chapter 6 for signal definitions. Voltage and current specifications are detailed in
Table 7-5, and Table 7-6. For platform planning, refer to Table 7-7, which provides V
CC
static and transient tolerances. This same information is presented graphically in
Figure 7-1.
The DC specifications for the DDR3 signals are listed in Table 7-8 Control Sideband and
Test Access Port (TAP) are listed in Table 7-9.
Table 7-5 through Table 7-6 list the DC specifications for the processor and are valid
only while meeting the thermal specifications (as specified in the processor Thermal /
Mechanical Specifications and Guidelines), clock frequency, and input voltages. Care
should be taken to read all notes associated with each parameter.
7.9.1 Voltage and Current Specifications
Notes:
1. Each processor is programmed with a maximum valid voltage identification value (VID), which is set at
manufacturing and cannot 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 (Adaptive
Thermal Monitor, Enhanced Intel SpeedStep Technology, or Low Power States).
2. 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.
3. Refer to Table 7-7 and Figure 7-1 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.
4. I
CC_MAX
specification is based on the V
CC_MAX
loadline. Refer to Figure 7-1 for details.
Table 7-5. Processor Core Active and Idle Mode DC Voltage and Current Specifications
Symbol Parameter Min Typ Max Unit Note
VID VID Range 0.6500 — 1.4000 V
V
CC
V
CC
for processor core See Table 7-7 and Figure 7-1 V1, 2, 3
V
CC,BOOT
Default V
CC
voltage for initial power up — 1.10 — V
I
CC
Processor
Number
X3470
X3460
X3450
X3440
X3430
For Intel Xeon processor 3400
series with 95 W TDP
2.93 GHz
2.80 GHz
2.66 GHz
2.53 GHz
2.40 GHz
——
110
110
110
110
110
A4
I
CC
Processor
Number
L3426
For Intel Xeon processor 3400
series with 45 W TDP
1.86 GHz
——
55
A4
I
CC_TDC
Sustained ICC; recommended design target
for Intel Xeon processor 3400 series with
95 W TDP
——90A
I
CC_TDC
2009A Sustained I
CC
; recommended design
target for Intel Xeon processor 3400 series
with 45 W TDP
——45A