Intel III M 866 MHz BXM80530B866512 数据表
产品代码
BXM80530B866512
Mobile Intel
®
Pentium
®
III Processor in BGA2 and Micro-PGA2 Packages at 1 GHz,
900 MHz, 850 MHz, 800 MHz, 750 MHz, 700 MHz, Low-voltage 750 MHz, Low-voltage 700 MHz,
Low-voltage 600 MHz, Ultra Low-voltage 600 MHz and Ultra Low-voltage 500 MHz
Low-voltage 600 MHz, Ultra Low-voltage 600 MHz and Ultra Low-voltage 500 MHz
48 Datasheet
283653-002
reliability of the processor. Unlike previous generations of mobile processors, the mobile Pentium
III processor uses GTL+ buffers for non-GTL+ signals. The input and output paths of the buffers
have been slowed down to match the requirements for the non-GTL+ signals. The signal quality
specifications for the non-GTL+ signals are identical to the GTL+ signal quality specifications
except that they are relative to V
III processor uses GTL+ buffers for non-GTL+ signals. The input and output paths of the buffers
have been slowed down to match the requirements for the non-GTL+ signals. The signal quality
specifications for the non-GTL+ signals are identical to the GTL+ signal quality specifications
except that they are relative to V
CMOSREF
rather than V
REF
transitions
OVERSHOOT_CHECKER can be used to verify non-GTL+ signal compliance with the signal
overshoot and undershoot tolerance. The tolerances listed in Table 27 are conservative. Signals
that exceed these tolerances may still meet the processor overshoot and undershoot tolerance if the
OVERSHOOT_CHECKER tool says that they pass.
overshoot and undershoot tolerance. The tolerances listed in Table 27 are conservative. Signals
that exceed these tolerances may still meet the processor overshoot and undershoot tolerance if the
OVERSHOOT_CHECKER tool says that they pass.
Table 27. Non-GTL+ Signal Group Overshoot/Undershoot Tolerance at the Processor Core
1, 4, 5
Overshoot Amplitude
2
Undershoot
Amplitude
3
Allowed Pulse Duration
2.1V -0.45V
0.45
ns
2.0V -0.35V
1.5
ns
1.9V -0.25V
5.0
ns
1.8V -0.15V
17
ns
NOTES:
1.
Under no circumstances should the non-GTL+ signal voltage ever exceed 2.1V maximum with respect to
ground or -2.1V minimum with respect to V
ground or -2.1V minimum with respect to V
CCT
(i.e., V
CCT
- 2.1V) under operating conditions.
2.
Ring-backs below V
CCT
cannot be subtracted from overshoots. Lesser undershoot does not allocate longer
or larger overshoot.
3.
Ring-backs above ground cannot be subtracted from undershoots. Lesser overshoot does not allocate
longer or larger undershoot.
longer or larger undershoot.
4.
System designers are encouraged to follow Intel provided non-GTL+ layout guidelines.
5.
All values are specified by design characterization, and are not tested.
4.3.1
PWRGOOD Signal Quality Specifications
The processor requires PWRGOOD to be a clean indication that clocks and the power supplies
(V
(V
CC
, V
CCT
, etc.) are stable and within their specifications. Clean implies that the signal will
remain below V
IL25
and without errors from the time that the power supplies are turned on, until
they come within specification. The signal will then transition monotonically to a high (2.5V)
state. PWRGOOD may not ringback below 2.0V after rising above V
state. PWRGOOD may not ringback below 2.0V after rising above V
IH25
.