Overview

The RL78/G23 microcontroller group is a new generation of the RL78 family of microcontrollers, with 41μA/MHz CPU operation. The RL78/G23 group has the industry’s lowest power consumption with 210nA at stop (4KB SRAM retention), and a snooze mode sequencer which significantly reduces power consumption during intermittent operation. The RL78/G23 group features a wide operating voltage range of 1.6V to 5.5V at up to 32MHz, a broad range of package pin counts from 30 pins to 128 pins, and up to 768KB of flash memory. In addition to enhanced analog and security features, it also incorporates logic and event link controllers (ELCL) and the first capacitive touch sensing unit (CTSU2L) in the RL78 family. A rich development environment is also provided for the RL78/G23, including a fast prototyping board. This board allows users to write and debug programs with an easy-to-use GUI, by simply connecting a USB cable and a smart configurator without any additional tools required. The RL78/G23 is compatible with the existing RL78 family and can be a seamless replacement, making it suitable for a wide range of applications, from home appliance and consumer electronics to industrial equipment.

  • CPU: RL78 core, Max. 32MHz
  • Up to 768kB Flash Memory and 48kB SRAM
  • Memory: SRAM up to. 48KB, Program Flash up to 768KB
  • 8KB Data Flash to store data as in EEPROM
  • Scalable from 30-pin to 128-pin packages
  • Wide operating voltage range of 1.6V to 5.5V
  • Enhanced Capacitive Sensing Unit (CTSU2L)
  • Timer: 16-bit Timer (ch) x 16, 8-bit Timer, Watchdog Timer (ch) x 1,32-bit Interval Timer x 1 ch
  • PWM: PWM Output x 14
  • Analog function: 12-bit A/D Converter (ch) x 26, 8-bit D/A - Converter (ch) x 2, Comparator x 2
  • On-chip Oscillator Freq. (MHz): High-Speed: up to 32MHz
  • Middle-Speed: up to 4MHz
  • Low-speed: 32.768kHz
  • Snooze mode sequencer
  • Logic & Event link controller
  • Others: RTC, Power-On Reset, Low Voltage Detection
  • A large selection of packages (LQFP, QFN, LGA, BGA, WLCSP)
  • General Purpose
  • Consumer applications
  • Home Appliance
  • Industrial Automation
  • Building Automation

Documentation

Title Type Date
PDF1.12 MB
Datasheet
PDF9.57 MB日本語
Manual - Hardware
PDF3.39 MB日本語
Related Files: Sample Code
Application Note
PDF4.29 MB日本語
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Application Note
PDF383 KB日本語
Application Note
PDF1.32 MB
Related Files: LoRaWAN(R)-Sensor Demo Package(V1.02)
Application Note
PDF587 KB
Related Files: LoRa(R)-based Wireless Software Package(V3.12)
Application Note
PDF1.93 MB
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PDF1.20 MB日本語
Brochure
PDF141 KB
Certificate
Flyer
PDF4.89 MB日本語
Flyer
Flyer
PDF14.70 MB日本語
General Reliability Literature
PDF3.63 MB日本語
Manual - Development Tools
PDF2.57 MB日本語
Manual - Development Tools
PDF1.92 MB日本語
Manual - Development Tools
PDF1.20 MB日本語
Manual - Development Tools
PDF2.67 MB日本語
Manual - Development Tools
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Manual - Development Tools
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Manual - Development Tools
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Manual - Hardware
PDF3.83 MB日本語
Manual - Hardware
PDF2.35 MB日本語
Manual - Hardware
PDF290 KB
Manual - Software
PDF2.02 MB
Manual - Software
PDF814 KB
Other
PDF361 KB
Other
PDF237 KB
Other
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Other
PDF314 KB日本語
Other
PDF285 KB
Other
PDF636 KB
Other
Other
PDF393 KB
Product Reliability Report
PDF404 KB
Product Reliability Report
PDF1.01 MB
Quick Start Guide
PDF4.35 MB
Quick Start Guide
PDF278 KB
Quick Start Guide
PDF209 KB日本語
Release Note
PDF170 KB日本語
Release Note
PDF373 KB日本語
Release Note
PDF161 KB日本語
Release Note
PDF2.87 MB
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PDF2.32 MB
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Release Note
PDF5.42 MB日本語
Technical Update
PDF1.26 MB日本語
Technical Update
PDF147 KB日本語
Tool News - Note
PDF31 KB日本語
Tool News - Note
PDF267 KB日本語
Tool News - Note
PDF316 KB日本語
Tool News - Note
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Tool News - Note
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Tool News - Notification
PDF186 KB日本語
Tool News - Release
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White Paper
White Paper

Design & Development

Software & Tool Pages

Title Type Company
C Compiler Package for RL78 FamilyC Compiler Package for RL78 Family [IDE: CS+, e2 studio] Compiler/Assembler Renesas
E2 emulator Lite [RTE0T0002LKCE00000R]On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX] Emulator Renesas
E2 emulator [RTE0T00020KCE00000R]On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX] Emulator Renesas
CS+Renesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0]
(Note: CS+ is not generally promoted to U.S. and European customers.)
(Note: To use Smart Configurator on CS+ for RL78/G23 and RX family MCUs, install the Smart Configurator for each MCU family separately downloading from ”Design & Support” > ”Development Tools” > ”Smart Configurator”)
IDE and Coding Tool Renesas
e² studioEclipse-based Renesas integrated development environment (IDE).
[Support MCU/MPU: RA, RE, RX, RL78, RH850, Renesas Synergy, RZ]
(Note: You need to install compiler separately as an additional software)
(Note: No separate e² studio installation required for RA FSP, this will be installed as part of the FSP with e² studio installer (Platform Installer) on GitHub.)
IDE and Coding Tool Renesas
RI78V4 V2 Real-time OS for RL78 FamilyμITRON Specification real-time OS for RL78 Family [Required IDE : CS+]

Downloads:
ITRON OS Renesas
CS+ Partner OS Aware Debugging Plug-inFeatures for task level debugging of real-time OS applications [Plugin for Renesas IDE CS+] [Support MCU/MPU: RX, RL78] Plug-in, OS Aware Debugging, Etc. Renesas
E2 Emulator (With Programming Function)On-chip debugging emulator available as a flash memory programmer [Available flash programming software: Renesas Flash Programmer] [Support MCU/MPU and devices: RE, RX, RL78, RH850, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver] Programmer (Unit/SW) Renesas
E2 Emulator Lite (With Programming Function)On-chip debugging emulator available as a flash memory programmer [Available flash programming software: Renesas Flash Programmer] [Support MCU/MPU and devices: RX, RL78, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver] Programmer (Unit/SW) Renesas
PG-FP6Flash memory programmer [Programming software: Dedicated GUI-based software, the "FP6 Terminal"] [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, SuperH RISC engine, V850, 78K, R8C] Programmer (Unit/SW) Renesas
Renesas Flash Programmer (Programming GUI)Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78KR, 78K0]Downloads: Programmer (Unit/SW) Renesas
Crypto LibraryRobust encode library to ensure security for all types of system developments Security / Crypto Renesas
Code Flash Libraries (Flash Self Programming Libraries)Libraries for the reprogramming of code area flash memory, including EEPROM emulation libraries for the code areas of 78K-family productsDownloads: Self Programming Library (Flash Library) Renesas
Data Flash LibrariesLibraries for the reprogramming of data flash memory, including EEPROM emulation libraries for the data areas of RL78-family productsDownloads: Self Programming Library (Flash Library) Renesas
Sensor Software Modules for Renesas MCU PlatformsMiddleware (FIT module and FSP module) and sample software packages that enable control and data acquisition for Renesas sensor products.
Downloads:
Sensor Renesas
RL78 Web SimulatorRight online tools to support initial evaluation of the low power consumption RL78 Family. Lineup: MCU Simulator Online and Current Consumption Calculator. Free of charge. Simulator Renesas
Simulator for CS+ of RL78 Family, 78K0R and 78K0Simulator for RL78 Family, 78K0R and 78K0 [Support IDE: CS+] (Note: This product is included in the Compiler Package and is not available separately.) Simulator Renesas
Simulator for e² studio of RL78 FamilySimulator for RL78 Family [Support IDE: e2 studio] (Note: This product is included in the Renesas IDE "e2 studio" and is not available separately.) Simulator Renesas
QE for Capacitive Touch: Development Assistance Tool for Capacitive Touch SensorsIn developing embedded system using the capacitive touch sensor of RA family and RX family MCUs, you can easily setup initial configurations of the touch interface as well as process the tuning of sensors, and reduce development time. [Plugin for Renesas IDE "e2 studio"]
Downloads:
Solution Toolkit Renesas
QE for Current Consumption: A Dedicated Tool for Current MeasurementDevelopment assistance tool helps to shorten the times taken in operations for the tuning of currents drawn. [Standard item in the "e² studio" and CS+ (CS+ for CC only) IDEs] [Support MCU/MPU: RX, RL78] Solution Toolkit Renesas
Smart ConfiguratorSmart Configurators are utilities for combining software in ways that meet your needs. They simplify the embedding of Renesas drivers in your systems through support for importing middleware and drivers and configuring pins. [Support MCU/MPU: RL78, RX, RH850, RA, RZ]Downloads: Solution Toolkit Renesas

Software Downloads

Title Type Date
PDF109 KB
Board Description File
ZIP4.24 MB
Board Description File
PDF240 KB
Board Description File

Sample Code

Title Type Date
ZIP48.82 MB
Related Files: HS300x Sample application
Compiler: CC-RX, ICCRX, ICCRL78
Function: Serial Peripheral Interface
IDE: e2 studio, IAR EWRX
Sample Code
ZIP2.50 MB
Related Files: RL78 Family HS300x Sensor Control Module Software Integration System Rev.1.20
Application: Consumer Electronics
Compiler: CC-RL, ICCRL78
Function: Serial Peripheral Interface, I2C-bus, RTOS
IDE: CS+, e2 studio, IAR EWRL78
Sample Code
ZIP2.55 MB
Related Files: RL78 Family OB1203 Sensor Control Module Software Integration System Rev.1.01
Sample Code
ZIP15.97 MB日本語
Related Files: RL78/23 Simple Firmware Update Module Rev.1.00
Sample Code
ZIP2.26 MB日本語
Related Files: RL78 Family CTSU Module Software Integration System Rev.1.20
Sample Code
ZIP2.02 MB日本語
Related Files: RL78 Family TOUCH Module Software Integration System Rev.1.20
Sample Code
ZIP5.07 MB日本語
Related Files: RL78/G23 ELCL Chattering Prevention Function Application Note Rev.2.00
Sample Code
ZIP5.20 MB日本語
Related Files: RL78/G23 ELCL Edge Detection Thinning Function Application Note Rev.2.00
Sample Code
ZIP5.31 MB日本語
Related Files: RL78/G23 ELCL Manchester Decoder Function Application Note Rev.2.00
Sample Code
ZIP5.76 MB日本語
Related Files: RL78/G23 ELCL Multiple Parameter Monitoring Function Application Note Rev.2.00
Sample Code
ZIP5.22 MB日本語
Related Files: Application Note
Sample Code
ZIP5.76 MB日本語
Related Files: RL78/G23 Firmware Upgrade Using External Flash Memory via Simplified SPI (CSI) Communication Rev.1.00
Application: Consumer Electronics
Compiler: CC-RL, ICCRL78
Function: Memory
IDE: e2 studio, CS+, IAR EWRL78
Sample Code
This sample software acquires gas data from the ZMOD4410 and ZMOD4510 gas sensors and calculates the result. In combination with the I2C driver of the FSP, the sample software controls the ZMOD4410 and ZMOD4510 through the I2C in the MCU to measure gases, acquire ADC data, and calculate the acquired result.
ZIP83.29 MB日本語
Related Files: ZMOD4xxx Sample application
Compiler: GCC
IDE: e2 studio
Sample Code
ZIP1.96 MB
Related Files: RL78 Family FS2012 Sensor Control Module Software Integration System Rev.1.10
Sample Code
ZIP2.00 MB
Related Files: RL78 Family Sensor I2C Communication Middleware Control Module Software Integration System Rev.1.10
Sample Code
ZIP2.22 MB
Related Files: RL78 Family ZMOD4410 and ZMOD4510 Sensor Control Module Software Integration System Rev.1.10
Sample Code
ZIP58.06 MB
Related Files: FS2012 Sample application
Sample Code
ZIP2.96 MB
Related Files: RL78 Family Board Support Package Module Using Software Integration System Rev.1.20
Sample Code
ZIP8.78 MB日本語
Related Files: RL78/G23 SMS Button Long Press/Short Press Judgment Rev.1.20
Sample Code
ZIP10.77 MB日本語
Related Files: RL78/G23 SMS HS300x Humidity sensor control by I2C communication Application Notes Rev.1.10
Sample Code
ZIP15.77 MB日本語
Related Files: RL78/G23 Firmware Update Module Rev.1.10
Sample Code
ZIP3.69 MB日本語
Related Files: RL78 Family Renesas Flash Driver RL78 Type 01 SC version (Code Flash) Application Notes, RL78 Family Renesas Flash Driver RL78 Type 01 SC version (Flash Common) - Sample Code
Sample Code
ZIP3.09 MB日本語
Related Files: RL78 Family Renesas Flash Driver RL78 Type 01 SC version (Data Flash) Application Notes, RL78 Family Renesas Flash Driver RL78 Type 01 SC version (Flash Common) - Sample Code
Sample Code
ZIP3.35 MB日本語
Related Files: RL78 Family Renesas Flash Driver RL78 Type 01 SC version (Extra Area) Application Notes, RL78 Family Renesas Flash Driver RL78 Type 01 SC version (Flash Common) - Sample Code
Sample Code
ZIP23 KB
Related Files: RL78 Family Renesas Flash Driver RL78 Type 01 SC version (Code Flash) - Sample Code, RL78 Family Renesas Flash Driver RL78 Type 01 SC version (Data Flash) - Sample Code, RL78 Family Renesas Flash Driver RL78 Type 01 SC version (Extra Area) - Sample Code
Sample Code
ZIP10.62 MB
Related Files: Radio Driver Reference guide Rev.3.12
Compiler: CC-RL
IDE: e2 studio, CS+
Sample Code
ZIP2.51 MB
Related Files: LoRaWAN® Sensor Demo Rev.1.02
Sample Code
ZIP9.33 MB
Related Files: RL78/G23 HS3001 Sensor Device Sample Rev.1.00
Application: Consumer Electronics
Compiler: CC-RL
Function: Communication Interface
IDE: e2 studio
Sample Code
ZIP12.95 MB
Related Files: RL78/G23 ZMOD4410 Sensor Device Sample Rev.1.00
Application: Consumer Electronics
Compiler: CC-RL
Function: Communication Interface
IDE: e2 studio
Sample Code
ZIP7.62 MB日本語
Related Files: RL78/G23 Remote Control Signal Reception (AEHA Format, STOP Mode)
Sample Code
ZIP7.65 MB日本語
Related Files: RL78/G23 Remote Control Signal Reception (NEC Format, STOP Mode)
Sample Code
ZIP51.27 MB日本語
Related Files: Application Note
Application: Consumer Electronics, Industrial
Compiler: CC-RL
Function: OS, Analog, Communication Interface
IDE: e2 studio
Sample Code
ZIP12.29 MB日本語
Related Files: RL78/G23 Group Touchless Button Electrode Board Sample Software Rev.1.00
Sample Code
ZIP5.58 MB日本語
Related Files: RL78 Family RL78/G23 Capacitive Touch Low Power Guide (SNOOZE function) Rev.1.00
Application: IoT Applications
Compiler: CC-RL
Function: HMI
IDE: e2 studio
Sample Code
ZIP7.77 MB日本語
Related Files: RL78/G23 40mA Port Output Rev.2.00
Sample Code
ZIP14.19 MB日本語
Related Files: RL78 Family FFT Library: Deployment Guide Rev.1.05
Sample Code
ZIP2.16 MB日本語
Related Files: Application Note
Sample Code
ZIP8.70 MB日本語
Related Files: RL78/G23 SMS Smoke Fire Detection Operation Rev.1.00
Sample Code
ZIP4.46 MB日本語
Related Files: RL78/G23 Capacitive Touch Evaluation System Sample Code Rev.1.00
Sample Code
ZIP4.13 MB日本語
Related Files: RL78/G23 Group Touchless Button Demo Solution Sample Software Rev.1.00
Sample Code
ZIP8.68 MB日本語
Related Files: Application Note
Sample Code
ZIP6.60 MB日本語
Related Files: RL78/G23 Timer Array Unit (Pulse Interval Measurement: Period) Rev.1.00
Sample Code
ZIP6.57 MB日本語
Related Files: RL78/G23 Timer Array Unit (Pulse Interval Measurement: Width) Rev.1.00
Sample Code
ZIP1.54 MB日本語
Related Files: Application Note
Sample Code
ZIP1.28 MB日本語
Related Files: RL78 Family SPI mode MultiMediaCard Driver: Introduction Guide Rev.2.00
Sample Code
ZIP1.79 MB日本語
Related Files: RL78/G14, RL78/G1C, RL78/L12, RL78/L13, RL78/L1C, RL78/G23 Group Clock Synchronous Single Master Control Software Using CSI Mode of Serial Array Unit Rev.1.06
Sample Code