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Renesas RL78/G24 High Performance MCU with Flexible Application Accelerator

The Renesas RL78/G24 microcontroller has the highest processing performance of the RL78 family of MCUs, with a CPU operating frequency up to 48 MHz and a flexible application accelerator (FAA). In addition, the enhanced analog functions and an abundance of timers make it a good fit for motor control, power supply, and lighting applications. The FAA is a co-processor dedicated to arithmetic operations, and can be operated independently of the CPU, delivering higher processing power.

A rich development environment is also provided for the RL78/G24, including an evaluation board (Fast Prototyping Board), where simply connecting a USB cable enables program writing/debugging without additional tools, and a kit specialized for initial evaluation of solutions for motors, power supplies, and lighting, and Smart Configurator, which facilitates design using GUI. It is also compatible with the existing RL78 Family and can be a seamless replacement, making it suitable for a wide range of applications from home appliances and consumer electronics to industrial equipment.


  • CPU: RL78 core, Max. 48MHz, FAA core
  • Voltage: 1.6V to 5.5V
  • Package: 20-pin to 64-pin
  • Memory: Program Flash: 64/128KB, SRAM 12KB, Data Flash 4KB
  • Operating temperature range: up to 125°C
  • Timer: 16-bit Timer (ch) x 12, Watchdog Timer (ch) x 1, 32-bit Interval Timer x 1 ch
  • PWM: PWM Output x 14
  • Analog function: 8/10/12-bit A/D Converter (ch) x 23, 8/10-bit D/A - Converter (ch) x 2~3, Comparator x 4, Programmable gain amplifier (PGA) x 1
  •  On-chip Oscillator Freq. (MHz):
    • High-Speed: up to 64MHz
    • Middle-Speed: up to 4MHz
    • Low-speed: 32.768kHz
  • Event link controller
  • Others: RTC, Power-On Reset, Low Voltage Detection


  • Portable Power Tools
  • Motor Control
  • Power Supply
  • Lighting
  • General Purpose
  • Consumer Applications
  • Home Appliances
  • Industrial Automation
  • Building Automation


STM32WB1MMC Block Diagram


RL78/G24 Fast Prototyping Board

The RL78/G24 Fast Prototyping Board is an evaluation board based on the RL78/G24 microcontroller and is specifically designed for prototyping various applications.

Simply plug in a USB cable to write/debug a program and start your evaluation without any additional tools. You can also perform advanced debugging using the E2 emulator Lite or the traditional E2 emulator. The board comes standard with Arduino Uno and Pmod™ interfaces, and has high scalability with access to all pins on the microcontroller.

RL78/G24 Fast Prototyping Board Quick Start Guide
RL78/G24 Fast Prototyping Board Quick Start Guide

Key Features:

  • Equipped with an RL78/G24 16-bit microcontroller (64-pin, ROM: 128KB, RAM: 12KB)
  • Programs can be written and debugged via the COM Port communication by connecting it to a PC with a USB cable
  • Able to access all the microcontroller pins
  • Comes standard with Arduino Uno, Pmod™ and Grove interfaces
  • Support for various RL78 software and tools