HD64F2145 Datasheet, PDF (601/829 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

21.2 Input/Output Pins
Table 21.1 summarizes the pins used by the A/D converter. The 8 analog input pins are divided
into two groups consisting of four channels. Analog input pins 0 to 3 (AN0 to AN3) comprising
group 0 and analog input pins 4 to 7 (AN4 to AN7) comprising group 1. Expanded A/D
conversion input pins (CIN0 to CIN15) can be selected with the AN6 and AN7 pins. The AVcc
and AVss pins are the power supply pins for the analog block in the A/D converter.
Table 21.1 Pin Configuration
Pin Name
Analog power
supply pin
Analog ground pin
Reference power
supply pin
Analog input pin 0
Analog input pin 1
Analog input pin 2
Analog input pin 3
Analog input pin 4
Analog input pin 5
Analog input pin 6
Analog input pin 7
A/D external trigger
input pin
Expanded A/D
conversion input
pins 0 to 15
Symbol
AV
CC
AV_SS
AVref
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
$'75*
CIN0 to
CIN15
I/O
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Function
Analog block power supply and reference voltage
Analog block ground and reference voltage
Reference voltage for A/D conversion
Group 0 analog input pins
Group 1 analog input pins
External trigger input pin for starting A/D
conversion
Expanded A/D conversion input (digital input)
channels 0 to 15
Can be used as digital input pins
Rev. 2.0, 08/02, page 561 of 788