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Rev. 1.0, 07/01, page 255 of 372
16.2 Input/Output Pins
Table 16-1 summarizes the input pins used by the A/D converter. The 18 analog input pins are
divided into two groups; analog input pins 0 to 3 (AN0 to AN3) comprising group 0, analog input
pins 4 to 7 (AN4 to AN7) comprising group 1. The AVcc pin is the power supply pins for the
analog block in the A/D converter.
Table 16-1 Pin Configuration
Pin Name Abbreviation I/O Function
Analog power supply pin AV
CC
Input Analog block power supply
Analog input pin 0 AN0 Input
Analog input pin 1 AN1 Input
Analog input pin 2 AN2 Input
Analog input pin 3 AN3 Input
Group 0 analog input
Analog input pin 4 AN4 Input
Analog input pin 5 AN5 Input
Analog input pin 6 AN6 Input
Analog input pin 7 AN7 Input
Group 1 analog input
A/D external trigger input
pin
ADTRG Input External trigger input for starting A/D
conversion