Datasheet

Section 24 A/D Converter
Page 818 of 982 REJ09B0465-0300 Rev. 3.00
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Table 24.1 shows the pin configuration of the A/D converter.
The AV
CC and AVSS pins are the power supply pins for the analog block in the A/D converter.
Unit 1 has 12 analog input pins; unit 2 has four analog input pins. Note that the actual number of
analog inputs in units 1 and 2 depends on the product group.
Table 24.1 Pin Configuration
Unit Pin Name I/O Function
Common AVCC Input Analog block power supply
AVSS Input Analog block ground
Unit 1 AN0 Input Unit 1 group 0 analog inputs
AN1 Input
AN2 Input
AN3 Input
AN4 Input Unit 1 group 1 analog inputs
AN5 Input
AN6 Input
AN7 Input
AN8 Input Unit 1 group 2 analog inputs*
1
AN9 Input
AN10 Input
AN11 Input
ADTRG1 Input External trigger input 1 for starting A/D conversion*
3
Unit 2 AN0_2 Input Unit 2 group 0 analog inputs*
2
AN1_2 Input
AN2_2 Input
AN3_2 Input
ADTRG2 Input External trigger input 2 for starting A/D conversion*
2
Notes: 1. Not supported in the H8S/20103 and H8S/20115 Groups.
2. Supported only in the H8S/20223 and H8S/20235 Groups.
3. This pin can also be used as the trigger-signal input for unit 2.