Intel LF80550KG0804M Datenbogen
Dual-Core Intel® Xeon® Processor 7100 Series Datasheet
27
Electrical Specifications
2.8
Test Access Port (TAP) Connection
Due to the voltage levels supported by other components in the TAP logic, Intel
recommends that the Dual-Core Intel® Xeon® Processor 7100 Series processor(s) be
first in the TAP chain, followed by any other components within the system. Use of a
translation buffer to connect to the rest of the chain is recommended unless one of the
other components is capable of accepting an input of the appropriate voltage. Similar
considerations must be made for TCK, TMS, TRST#, TDI, and TDO. Two copies of each
signal may be required, each driving a different voltage level.
recommends that the Dual-Core Intel® Xeon® Processor 7100 Series processor(s) be
first in the TAP chain, followed by any other components within the system. Use of a
translation buffer to connect to the rest of the chain is recommended unless one of the
other components is capable of accepting an input of the appropriate voltage. Similar
considerations must be made for TCK, TMS, TRST#, TDI, and TDO. Two copies of each
signal may be required, each driving a different voltage level.
2.9
Maximum Ratings
specifies absolute maximum and minimum ratings. Within functional
operation limits, functionality and long-term reliability can 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.
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.
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.
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.
.
Excessive overshoot or undershoot on any signal will likely result in permanent damage to the processor.
3.
Storage temperature is applicable to storage conditions only. In this scenario, the processor must not
receive a clock, and no pins 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 specifications.
4.
This rating applies to the processor and does not include any packaging or trays.
Table 2-9.
Processor Absolute Maximum Ratings
Symbol
Parameter
Min
Max
Unit
Notes
1,2
V
CC
Processor core supply voltage with
respect to V
SS
-0.3
1.55
V
V
CACHE
Processor L3 cache voltage with
respect to V
SS
-0.3
1.55
V
V
TT
Front side bus termination voltage
with respect to V
SS
-0.3
1.55
V
T
CASE
Processor case temperature
See
See
°C
T
STORAGE
Processor storage temperature
-40
85
°C
3, 4