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.
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General Reliability Literature
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PDF131 KB
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Product Reliability Report
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Quick Start Guide
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Quick Start Guide
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Quick Start Guide
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Technical Update
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Tool News - Note
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White Paper
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White Paper
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DALI Master Controller GUIThe DALI Master Controller GUI controls an RL78/I1A lighting communication master evaluation boardDownloads: | Code Generator | Renesas |
C Compiler Package for RL78 Family [CC-RL]C 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 studio -information for RL78 FamilyEclipse-based Renesas integrated development environment (IDE). | 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] | 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 |
RL78 Smart ConfiguratorRL78 Smart Configurator is a utility for combining software in ways that meet your needs. It simplifies the embedding of Renesas drivers in your systems through supports for importing middleware and drivers and configuring pins.Downloads: | Solution Toolkit | Renesas |
Sound Playback/Compression System [M3S-S2-Tiny] for RL78 FamilySound playback system for RL78 Family | Sound / Voice | Renesas |