Intel LF80550KG0804M Data Sheet

Page of 128
Dual-Core Intel® Xeon® Processor 7100 Series Datasheet
35
Electrical Specifications
2.10.3
V
CACHE
 Overshoot Specification
The Dual-Core Intel Xeon processor 7100 series can tolerate short transient overshoot 
events where V
CACHE
 exceeds the V
CACHE 
maximum loadline voltage when transitioning 
from a high-to-low current load condition.  This overshoot cannot exceed V
CACHE_MAX
 + 
VOS_cache_MAX. (VOS_cache_MAX is the maximum allowable overshoot above 
V
CACHE_MAX
 at the low current load). These specifications apply to the processor cache 
voltage as measured across the 
V
CC_CACHE_SENSE
 and V
SS_CACHE_SENSE
 pins.
Note:
1.
V
CACHE_MAX
 and 
 where I
CACHE
 is the low, ending current of the high-to-
low current load condition.
Table 2-14. V
CC
 Overshoot Specification
Symbol
Parameter
Min
Max
Units
Figure
Notes
V
OS_MAX
Magnitude of V
CC
 
overshoot above VID
0.025
V
T
OS_MAX
Time duration of V
CC
 
overshoot above VID
5
μs
Figure 2-7. V
CC
 Overshoot Example Waveform
Table 2-15. V
CACHE
 Overshoot Specification
Symbol
Parameter
Min
Max
Units
Figure
Notes
V
OS_CACHE_MAX
Magnitude of V
CACHE
 
overshoot above 
V
CACHE_MAX
0.025
V
1
T
OS_CACHE_MAX
Time duration of V
CACHE
 
overshoot above 
V
CACHE_MAX
50
μs