Renesas RX Series User Manual

R01UH0823EJ0100 Rev.1.00 Page 59 of 1823
Jul 31, 2019
RX23W Group 1. Overview
1.4 Pin Functions
Table 1.4 lists the pin functions.
Table 1.4 Pin Functions (1/4)
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 a 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).
VBATT Input Backup power pin
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_RF Output Bluetooth-dedicated clock output pin for output of a 1-, 2-, or 4-MHz signal
XTAL1_RF Input Pins for connecting the Bluetooth-dedicated clock oscillator. Connect a 32-
MHz oscillator to these pins.
XTAL2_RF Output
CLKOUT Output
Clock output pin.
Operating mode
control
MD Input Pin for setting the operating mode. The signal levels on this pin must not
be changed during operation.
UB Input Pin used for boot mode (USB interface).
UPSEL Input Pin used for boot mode (USB interface).
System control RES# Input Reset pin. This MCU enters the reset state when this signal goes low.
CAC 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, IRQ1, IRQ4 to IRQ7 Input Interrupt request pins.
16-bit timer
pulse unit
TIOCB0 I/O The TGRB0 inputs capture input/output compare output/PWM output pins.
TIOCB1 I/O The TGRB1 inputs capture input/output compare output/PWM output pins.
TIOCB2 I/O The TGRB2 inputs capture input/output compare output/PWM output pins.
TIOCA3, TIOCB3,
TIOCC3, TIOCD3
I/O The TGRA3 to TGRD3 input capture input/output compare output/PWM
output pins.
TIOCA4, TIOCB4 I/O The TGRA4 and TGRB4 input capture input/output compare output/PWM
output pins.
TIOCB5 I/O The TGRB5 inputs capture input/output compare output/PWM output pins.
TCLKA, TCLKB,
TCLKC, TCLKD
Input Input pins for external clock signals.
Multi-function
timer pulse unit 2
MTIOC0A, MTIOC0B,
MTIOC0C
I/O The TGRA0 to TGRC0 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.
MTCLKA, MTCLKB,
MTCLKC, MTCLKD
Input Input pins for the external clock.

Renesas RX Series Specifications

General

Core	RXv1, RXv2, RXv3
Flash Memory	Up to 8 MB
RAM	Up to 1 MB
Operating Voltage	1.62V to 5.5V
Operating Temperature	-40°C to +85°C or +105°C
Package	BGA, LQFP
ADC Resolution	12-bit
DAC Resolution	12-bit
Communication Interfaces	SCI, SPI, I2C, USB, Ethernet, CAN
Architecture	32-bit
Security Features	Memory Protection Unit (MPU)