RA2A1 datasheet(13/100 Pages) RENESAS

13 / 100 page

R01DS0354EJ0110 Rev.1.10

Page 13 of 100

Mar 16, 2020

RA2A1 Datasheet

1. Overview

Analog power supply

AVCC0

Input

Analog voltage supply pin for the ADC16, DAC12, DAC8, ACMPHS,

ACMPLP, and OPAMP

AVSS0

Input

Analog ground pin for the ADC16, DAC12, DAC8, ACMPHS, ACMPLP,

and OPAMP

AVCC1

Input

Analog voltage supply pin for the SDADC24

AVSS1

Input

Analog ground pin for the SDADC24

VREFH0

Input

Analog reference voltage supply pin for the ADC16. Connect this pin to

AVCC0 when not using the ADC16.

VREFL0

Input

Analog reference ground pin for the ADC16. Connect this pin to AVSS0

when not using the ADC16.

VREFH

Input

Analog reference voltage supply pin for the DAC12

VREFL

Input

Analog reference ground pin for the DAC12

ADC16

AN000 to AN008,

AN016 to AN023

Input

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

ADTRG0

Input

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

active-low

SDADC24

ANSD0P to

ANSD3P

Input

Input pins for the analog signals to be processed by the SDADC24

ANSD0N to

ANSD3N

Input

Input pins for the analog signals to be processed by the SDADC24

ADREG

Output

Regulator capacitance for the SDADC24

SBIAS

Output

Sensor power supply

VREFI

Input

External reference voltage supply pin for the SDADC24

DAC12

DA12_0

Output

Output pin for the analog signals to be processed by the 12-bit D/A

converter

DAC8

DA8_0, DA8_1

Output

Output pins for the analog signals to be processed by the 8-bit D/A

converter

Comparator output

VCOUT

Output

Comparator output pin

ACMPHS

IVREF0 to IVREF2

Input

Reference voltage input pin

IVCMP0 to IVCMP2 Input

Analog voltage input pin

ACMPLP

CMPREF0,

CMPREF1

Input

Reference voltage input pins

CMPIN0, CMPIN1

Input

Analog voltage input pins

OPAMP

AMP0+ to AMP2+

Input

Analog voltage input pins

AMP0- to AMP2-

Input

Analog voltage input pins

AMP0O to AMP2O

Output

Analog voltage output pins

CTSU

TS00 to TS25

Input

Capacitive touch detection pins (touch pins)

TSCAP

Secondary power supply pin for the touch driver

KINT

KR00 to KR07

Input

Key interrupt input pins

Table 1.14

Pin functions (3 of 4)

Function

Signal

I/O

Description

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