RX140 datasheet(13/121 Pages) RENESAS

13 / 121 page

R01DS0379EJ0120 Rev.1.20

Page 13 of 121

Nov 22, 2024

RX140 Group

1. Overview

Note 1. This is not supported by products with 64 Kbytes of ROM.

Serial peripheral

interface

RSPCKA

I/O

Input/output pin for the RSPI clock.

MOSIA

I/O

Input/output pin for transmitting data from the RSPI master.

MISOA

I/O

Input/output pin for transmitting data from the RSPI slave.

SSLA0

I/O

Input/output pin to select the slave for the RSPI.

SSLA1 to SSLA3

Output

Output pins to select the slave for the RSPI.

CAN module

CRXD0

Input

Input pin

CTXD0

Output

Output pin

12-bit A/D

converter

AN000 to AN007,

AN016 to AN021, AN024 to

AN026

Input

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

ADTRG0#

Input

Input pin for the external trigger signal that start the A/D conversion.

D/A converter

DA0, DA1

Output

Analog output pins of the D/A converter.

Comparator B

CMPB0, CMPB1

Input

Input pin for the analog signal to be processed by comparator B.

CVREFB0, CVREFB1

Input

Analog reference voltage supply pin for comparator B.

CMPOB0, CMPOB1

Output

Output pin for comparator B.

Capacitive touch

sensing unit

TS0 to TS35

I/O

Electrostatic capacitance measurement pins (touch pins).

TSCAP

—

Connect to the VSS via a decoupling capacitor (10 nF) for stabilizing the

internal voltage

Analog power

supply

AVCC0

Input

Analog voltage supply pin for the 12-bit A/D converter and D/A converter.

Connect this pin to VCC when not using the 12-bit A/D converter and D/A

converter.

AVSS0

Input

Analog ground pin for the 12-bit A/D converter and D/A converter. Connect

this pin to VSS when not using the 12-bit A/D converter and D/A converter.

VREFH0

Input

Analog reference voltage supply pin for the 12-bit A/D converter.

VREFL0

Input

Analog reference ground pin for the 12-bit A/D converter.

I/O ports

P03 to P07

I/O

5-bit input/output pins.

P12 to P17

I/O

6-bit input/output pins.

P20, P21, P26, P27

I/O

4-bit input/output pins.

P30 to P32, P34 to P37

I/O

7-bit input/output pins (P35 input pin).

P40 to P47

I/O

8-bit input/output pins.

P54, P55

I/O

2-bit input/output pins.

PA0 to PA6

I/O

7-bit input/output pins.

PB0 to PB7

I/O

8-bit input/output pins.

PC2 to PC7

I/O

6-bit input/output pins.

PD0 to PD2

I/O

3-bit input/output pins.

PE0 to PE5

I/O

6-bit input/output pins.

PG7

I/O

1-bit input/output pin.

PH0 to PH3, PH6*1, PH7*1

I/O

6-bit input/output pins (PH6, PH7: input pins).

PJ1, PJ6, PJ7

I/O

3-bit input/output pins.

Table 1.4

Pin Functions (3/3)

Classifications

Pin Name

I/O

Description

RX140 Datasheet(PDF) 13 Page - Renesas Technology Corp

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