DTK PAM-0066I, User Manual

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Chapter 2
6
2.2.2 INTEL PENTIUM w/ MMX
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TECH (P55C) CPU
The Intel Pentium w/ MMX
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Tech (P55C) CPU is offered with dual voltage supply -
2.8V for core and 3.3V (I/O) interface. The following is the marking for identify the
CPU type. (The following diagram is provided as an example only. It does not
necessarily indicate a valid product marking.)
Fig. 2b CPU Description
(Top Side)
2.2.3 AMD-K6 CPU
The AMD-K6 CPU family require dual voltage power for operation. The AMD-K6/166,
200 require a voltage of 2.9V core and 3.3V I/O. The AMD-K6/233 require a voltage of
3.2V core and 3.3V I/O. (The following diagram is provided as an example only. It does
not necessarily indicate a valid product marking.)
Fig. 2c CPU Description
(Top Side)
Operating Voltage I/O Voltage Core Voltage
2.1V 3.3V 2.1V
2.9V 3.3V 2.9V
3.2V 3.3V 3.2V