User Manual

Intel
®
Xeon
®
Processor 5600 Series Datasheet Volume 1 31
Electrical Specifications
specifications equal to the FMB value in the foreseeable future. System designers
should meet the FMB values to ensure their systems will be compatible with future
processors.
2.5 Absolute Maximum and Minimum Ratings
Table 2-7 specifies absolute maximum and minimum ratings only, which lie outside the
functional limits of the processor. Only within specified operation limits, can
functionality and long-term reliability be expected.
At conditions outside functional operation condition limits, but within absolute
maximum and minimum ratings, neither functionality nor long-term reliability can be
expected. If a device is returned to conditions within functional operation limits after
having been subjected to conditions outside these limits, but within the absolute
maximum and minimum ratings, the device may be functional, but with its lifetime
degraded depending on exposure to conditions exceeding the functional operation
condition limits.
At conditions exceeding absolute maximum and minimum ratings, neither functionality
nor long-term reliability can be expected. Moreover, if a device is subjected to these
conditions for any length of time then, when returned to conditions within the
functional operating condition limits, it will either not function or its reliability will be
severely degraded.
Although the processor contains protective circuitry to resist damage from static
electric discharge, precautions should always be taken to avoid high static voltages or
electric fields.
Notes:
1. For functional operation, all processor electrical, signal quality, mechanical and thermal specifications must
be satisfied.
2. Overshoot and undershoot voltage guidelines for input, output, and I/O signals are outlined in Section 3.
Excessive overshoot or undershoot on any signal will likely result in permanent damage to the processor.
3. V
TTA
and V
TTD
should be derived from the same voltage regulator (VR).
4. 5% tolerance
5. Storage temperature is applicable to storage conditions only. In this scenario, the processor must not
receive a clock, and no lands can be connected to a voltage bias. Storage within these limits will not affect
the long-term reliability of the device. For functional operation, please refer to the processor case
temperature specification.
6. This rating applies to the processor and does not include any tray or packaging.
7. Failure to adhere to this specification can affect the long-term reliability of the processor
Table 2-7. Processor Absolute Minimum and Maximum Ratings
Symbol Parameter Min Max Unit Notes
1,2
V
CC
Processor core voltage with respect to V
SS
-0.3 1.4 V
V
CCPLL
Processor PLL voltage with respect to V
SS
-0.3 2.0 V 4
V
DDQ
Processor I/O supply voltage for DDR3
with respect to V
SS
-0.3 1.8 V 4
V
TTA
Processor uncore analog voltage with
respect to V
SS
-0.3 1.4 V 3
V
TTD
Processor uncore digital voltage with
respect to V
SS
-0.3 1.4 V 3
T
CASE
Processor case temperature See
Section 7
See
Section 7
C
T
STORAGE
Storage temperature See
Section 7.4
See
Section 7.4
C5,6,7
V
ISENSE
Analog input voltage with respect to VSS
for sensing core current consumption
-0.3 1.15 V