RA4M3 datasheet(12/92 Pages) RENESAS

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Table 1.14

Pin functions (4 of 4)

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.

VREFH0

Input

Analog reference voltage supply pin for the ADC12 (unit 0). Connect

this pin to AVCC0 when not using the ADC12 (unit 0).

VREFL0

Input

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

AVSS0 when not using the ADC12 (unit 0).

VREFH

Input

Analog reference voltage supply pin for the ADC12 (unit 1) and D/A

Converter. Connect this pin to AVCC0 when not using the ADC12

(unit 1) and D/A Converter.

VREFL

Input

Analog reference ground pin for the ADC12 and D/A Converter.

Connect this pin to AVSS0 when not using the ADC12 (unit 1) and

D/A Converter.

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.

CTSU

TSn

Input

Capacitive touch detection pins (touch pins)

TSCAP

I/O

Secondary power supply pin for the touch driver

I/O ports

Pmn

I/O

General-purpose input/output pins

(m: port number, n: pin number)

P200

Input

General-purpose input pin

RA4M3 Datasheet

1. Overview

R01DS0368EJ0120 Rev.1.20

Dec 2, 2020

Page 12 of 92

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