參數(shù)資料
型號(hào)： RH80532NC025256
元件分類： 微處理器
英文描述： Microprocessor
中文描述： 微處理器
文件頁(yè)數(shù)： 17/93頁(yè)
文件大小： 2353K
代理商： RH80532NC025256
Mobile Intel
Pentium
4 Processor-M
250686-002
Datasheet
17
.
NOTES:
1. Diagram not to scale.
2. No specification for frequencies beyond fcore (core frequency).
3. fpeak, if existent, should be less than 0.05 MHz.
2.4.3
Catastrophic Thermal Protection
The Mobile Intel Pentium 4 Processor-M supports the THERMTRIP# signal for catastrophic
thermal protection. Alternatively an external thermal sensor can be used to protect the processor
and the system against excessive temperatures. Even with the activation of THERMTRIP#, which
halts all processor internal clocks and activity, leakage current can be high enough such that the
processor cannot be protected in all conditions without the removal of power to the processor. If the
external thermal sensor detects a catastrophic processor temperature of 135°C (maximum), or if the
THERMTRIP# signal is asserted, the VCC supply to the processor must be turned off within
500 ms to prevent permanent silicon damage due to thermal runaway of the processor. Refer to
Section 5.2
for more details on THERMTRIP#.
2.5
Signal Terminations, Unused Pins and TESTHI[10:0]
All NC pins must remain unconnected. Connection of these pins to V
CC
, V
, or to any other signal
(including each other) can result in component malfunction or incompatibility with future Mobile
Intel Pentium 4 Processor-M. See Section 5.2 for a pin listing of the processor and the location of
all NC pins.
Figure 3. Phase Lock Loop (PLL) Filter Requirements
0 dB
-28 dB
-34 dB
0.2 dB
forbidden
zone
-0.5 dB
forbidden
zone
1 MHz
66 MHz
fcore
fpeak
1 Hz
DC
passband
high frequency
band
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