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Table 1.14

Pin functions (3 of 3)

Function

Signal

I/O

Description

Analog power supply

AVCC0

Input

Analog voltage supply pin. This is used as the analog power supply

for the respective modules. Supply this pin with the same voltage as

the VCC pin.

AVSS0

Input

Analog ground pin. This is used as the analog ground for the

respective modules. Supply this pin with the same voltage as the

VSS pin.

VREFH

Input

Analog reference voltage supply pin for the D/A Converter. Connect

this pin to AVCC0 when not using the D/A Converter.

VREFL

Input

Analog reference ground pin for the D/A Converter. Connect this pin

to AVSS0 when not using the D/A Converter.

VREFH0

Input

Analog reference voltage supply pin for the ADC12. Connect this pin

to AVCC0 when not using the ADC12.

VREFL0

Input

Analog reference ground pin for the ADC12. Connect this pin to

AVSS0 when not using the ADC12.

ADC12

ANmn

Input

Input pins for the analog signals to be processed by the A/D

converter.

(m: ADC unit number, n: pin number)

ADTRGm

Input

Input pins for the external trigger signals that start the A/D

conversion, active-low.

DAC12

DAn

Output

Output pins for the analog signals processed by the D/A converter.

I/O ports

Pmn

I/O

General-purpose input/output pins

(m: port number, n: pin number)

P200

Input

General-purpose input pin

RA4E1 Datasheet

1. Overview

R01DS0391EJ0130 Rev.1.30

Jun 6, 2025

Page 11 of 81

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