R5F51406BDFK30 datasheet(11/118 Pages) RENESAS

11 / 118 page

R01DS0379EJ0110 Rev.1.10

Page 11 of 118

Apr 20, 2022

RX140 Group

1. Overview

1.4

Pin Functions

Table 1.4 lists the pin functions.

Table 1.4

Pin Functions (1/3)

Classifications

Pin Name

I/O

Description

Power supply

VCC

Input

Power supply pin. Connect it to the system power supply.

VCL

—

Connect this pin to the VSS pin via the 4.7 µF smoothing capacitor used to

stabilize the internal power supply. Place the capacitor close to the pin.

VSS

Input

Ground pin. Connect it to the system power supply (0 V).

Clock

XTAL

Output

Pins for connecting a crystal. An external clock can be input through the

EXTAL pin.

EXTAL

Input

XCIN

Input

Input/output pins for the sub-clock oscillator. Connect a crystal between

XCIN and XCOUT.

XCOUT

Output

CLKOUT

Output

Clock output pin.

Operating mode

control

Input

Pin for setting the operating mode. For usage, refer to section 3.1,

Operating Mode Types and Selection in the User’s Manual: Hardware.

System control

RES#

Input

Reset pin. This MCU enters the reset state when this signal goes low.

Voltage

detection circuit

CMPA2

Input

Detection target voltage pin for voltage detection 2.

Clock frequency

accuracy

measurement

circuit

CACREF

Input

Input pin for the clock frequency accuracy measurement circuit.

On-chip

emulator

FINED

I/O

FINE interface pin.

Interrupts

NMI

Input

Non-maskable interrupt request pin.

IRQ0 to IRQ7

Input

Interrupt request pins.

Multi-function

timer pulse unit 2

MTIOC0A, MTIOC0B,

MTIOC0C, MTIOC0D

I/O

The TGRA0 to TGRD0 input capture input/output compare output/PWM

output pins.

MTIOC1A, MTIOC1B

I/O

The TGRA1 and TGRB1 input capture input/output compare output/PWM

output pins.

MTIOC2A, MTIOC2B

I/O

The TGRA2 and TGRB2 input capture input/output compare output/PWM

output pins.

MTIOC3A, MTIOC3B,

MTIOC3C, MTIOC3D

I/O

The TGRA3 to TGRD3 input capture input/output compare output/PWM

output pins.

MTIOC4A, MTIOC4B,

MTIOC4C, MTIOC4D

I/O

The TGRA4 to TGRD4 input capture input/output compare output/PWM

output pins.

MTIC5U, MTIC5V, MTIC5W

Input

The TGRU5, TGRV5, and TGRW5 input capture input/external pulse input

pins.

MTCLKA, MTCLKB,

MTCLKC, MTCLKD

Input

Input pins for the external clock.

Port output

enable 2

POE0# to POE3#, POE8#

Input

Input pins for request signals to place the MTU pins in the high impedance

state.

Realtime clock

RTCOUT

Output

Output pin for the 1-Hz/64-Hz clock.

8-bit timer

TMO0 to TMO3

Output

Compare match output pins.

TMCI0 to TMCI3

Input

Input pins for the external clock to be input to the counter.

TMRI0 to TMRI3

Input

Counter reset input pins.

Low power timer

LPTO

Output

PWM output pin

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