Intel Pentium M 730 RH80536GE0252M User Manual

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 4 Processor-M Datasheet  

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2. Listed frequencies are not necessarily committed production frequencies.

The Mobile Intel Pentium 4 Processor-M uses a differential clocking implementation. For more 
information on Mobile Intel Pentium 4 Processor-M clocking. 

The voltage set by the VID pins is the nominal/typical voltage setting for the processor. A 
minimum voltage is provided in 

 and changes with frequency. This allows processors 

running at a higher frequency to have a relaxed minimum voltage specification. The specifications 
have been set such that one voltage regulator can work with all supported frequencies.

The Mobile Intel Pentium 4 Processor-M uses five voltage identification pins, VID[4:0], to support 
automatic selection of power supply voltages. The VID pins for the Mobile Intel Pentium 4 
Processor-M are open drain outputs driven by the processor VID circuitry. 

 specifies the 

voltage level corresponding to the state of VID[4:0]. A “1” in this table refers to a high-voltage 
level and a “0” refers to low-voltage level. 

Power source characteristics must be stable whenever the supply to the voltage regulator is stable. 
Refer to the 

 for timing details of the power up sequence. Also refer to Mobile Intel

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for 

implementation details. 

Mobile Intel Pentium 4 Processor-M’s Voltage Identification circuit requires an independent 1.2-V 
supply. This voltage must be routed to the processor VCCVID pin. 

 shows the voltage and 

current requirements of the VCCVID pin.

1mA

80mA

150mA to 300mA

30mA

1V

1.2V+10%

1.2V-5%

5nS

70nS