Datasheet

Section 19 A/D Converter
Rev. 1.50 Sep. 18, 2007 Page 445 of 584
REJ09B0240-0150
19.2 Input/Output Pins
Table 19.1 summarizes the input pins used by the A/D converter. The 16 analog input pins are
divided into four groups, each of which has four channels. Group 0 comprises analog input pins 0
to 3 (AN0 to AN3), group 1 comprises analog input pins 4 to 7 (AN4 to AN7), group 2 comprises
analog input pins 8 to 11 (AN8 to AN11), and group 3 comprises analog input pins 12 to 15
(AN12 to AN15). The AVcc pin is the power supply pin for the analog block in the A/D
converter.
Table 19.1 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
Analog input pin 8 AN8 Input
Analog input pin 9 AN9 Input
Analog input pin 10 AN10 Input
Analog input pin 11 AN11 Input
Group 2 analog input
Analog input pin 12 AN12 Input
Analog input pin 13 AN13 Input
Analog input pin 14 AN14 Input
Analog input pin 15 AN15 Input
Group 3 analog input
A/D external trigger input pin ADTRG Input External trigger input for starting A/D
conversion