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| 型號(hào)： | RH80532NC029256 |
| 元件分類： | 微處理器 |
| 英文描述： | Microprocessor |
| 中文描述： | 微處理器 |
| 文件頁數(shù)： | 15/93頁 |
| 文件大小： | 2353K |
| 代理商： | RH80532NC029256 |
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Mobile Intel
Pentium
4 Processor-M
250686-002
Datasheet
15
2.4.1
Enhanced Intel SpeedStep
Technology
The Mobile Intel Pentium 4 Processor-M, when used in conjunction with the requisite Intel
SpeedStep
technology applet or its equivalent, supports Enhanced Intel SpeedStep technology.
Enhanced Intel SpeedStep technology allows the processor to switch between two core frequencies
automatically based on CPU demand, without having to reset the processor or change the system
bus frequency. The processor operates in two modes, the "Maximum Performance Mode" or the
"Battery Optimized Mode". Each frequency and voltage pair identifies the operating mode. The
processor drives the VID[4:0] pins with the correct VID for the current operating mode. After
reset, the processor will start in the "Battery Optimized Mode". Any RESET# assertion will force
the processor to the "Battery Optimized Mode". INIT# assertions ("soft" resets) and APIC bus
INIT messages do not change the operating mode of the processor. Some electrical and thermal
specifications are for a specific voltage and frequency. The Mobile Intel Pentium 4 Processor-M
featuring Enhanced Intel SpeedStep technology will meet the electrical and thermal specifications
specific to the current operating mode, and it is not guaranteed to meet the electrical and thermal
specifications specific to the opposite operating mode. The timing specifications must be met when
performing an operating mode transition.
2.4.2
Phase Lock Loop (PLL) Power and Filter
V
CCA
and V
CCIOPLL
are power sources required by the PLL clock generators on the Mobile Intel
Pentium 4 Processor-M silicon. Since these PLLs are analog in nature, they require quiet power
supplies for minimum jitter. Jitter is detrimental to the system: it degrades external I/O timings as
well as internal core timings (i.e. maximum frequency). To prevent this degradation, these supplies
must be low pass filtered from V
CCVID
. A typical filter topology is shown in
Figure 2
.
1
0
1
0
1
0.850
1
0
1
0
0
0.875
1
0
0
1
1
0.900
1
0
0
1
0
0.925
1
0
0
0
1
0.950
1
0
0
0
0
0.975
0
1
1
1
1
1.000
0
1
1
1
0
1.050
0
1
1
0
1
1.100
0
1
1
0
0
1.150
0
1
0
1
1
1.200
0
1
0
1
0
1.250
0
1
0
0
1
1.300
0
1
0
0
0
1.350
0
0
1
1
1
1.400
0
0
1
1
0
1.450
0
0
1
0
1
1.500
0
0
1
0
0
1.550
0
0
0
1
1
1.600
0
0
0
1
0
1.650
0
0
0
0
1
1.700
0
0
0
0
0
1.750
Table 2. Voltage Identification Definition (Page 2 of 2)
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| RH80532NC033256 | Microprocessor |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RH80532NC033256 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microprocessor |
| RH80532NC049256 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| RH80532NC049256S L8SB | 制造商:Intel 功能描述:INTEL CELERON PROCESSOR AVAILABLE AT 1.60 GHZ, 1.8 GHZ, 2.00 GHZ, 2.2 GHZ |
| RH80532NC049256S-L8SB | 制造商:Intel 功能描述:INTEL CELERON PROCESSOR AVAILABLE AT 1.60 GHZ, 1.8 GHZ, 2.00 GHZ, 2.2 GHZ |
| RH80532NC056256 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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