Overview
Description
RL78/G10 microcontrollers realize the industry's lowest level of consumption current (CPU: 46 μA/MHz, standby (STOP): 560 nA). With an on-chip oscillator, A/D converter, comparator, and more, and a 10/16-pin package lineup, they support more compact system size. These low pin count microcontrollers are perfect for small consumer electronics.
Features
- CPU: RL78 core, Max. 20MHz
- Voltage: 2V to 5.5V
- Package: 64-pin HTFQFP, 10-pin LSSOP, 16-pin SSOP
- Memory: SRAM Max. 0.5KB, Program Flash Max. 4KB
- Timer: 16-bit Timer (ch) x 4, 8-bit Timer (ch) x 4, Watchdog Timer (ch) x 1, 12-bit Interval Timer x 1 ch
- PWM: PWM Output x 3
- Analog function: 10-bit A/D Converter (ch) x 8
- On-chip Oscillator Freq. (MHz): High-Speed: 20, 10. 5, 2.5 1.25MHz Low-speed: 15kHz
- Others: Power-On Reset
Comparison
Applications
Design & Development
Software & Tools
Software & Tools
Software title
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Software type
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Company
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Sound Playback/Compression System [M3S-S2-Tiny] for RL78 Family Sound playback system for RL78 Family
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Sound / Voice | Renesas |
AP4, Applilet Peripheral I/O driver generator compatible with third-party compilers and GNU compiler (for RZ, V850, RX, RL78, and 78K)
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Code Generator | Renesas |
Applilet EZ PL for RL78 Programming software that can easily create microcontroller application software like assembling a puzzle, without using programming languages
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Code Generator | Renesas |
Code Generator Plug-in Automatic driver generation tool for internal peripheral I/O modules through GUI settings [Standard features for Renesas IDE "e² studio" and CS+] [Support MCU/MPU: RL78, V850, 78K, RX]
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Code Generator | Renesas |
C Compiler Package for RL78 Family [CC-RL] C Compiler Package for RL78 Family [IDE: CS+, e² studio]
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Compiler/Assembler | 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, RISC-V MCU]
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Emulator | Renesas |
E2 emulator Lite [RTE0T0002LKCE00000R] On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]
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Emulator | Renesas |
PG-FP6 Flash memory programmer [Programming software: Dedicated GUI-based software, the "FP6 Terminal"] [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, SuperH RISC engine, V850, 78K, R8C]
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Programmer (Unit/SW) | Renesas |
Renesas Flash Programmer (Programming GUI) Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU Renesas Synergy, DA1453x, DA1459x, DA1469x, DA1470x, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78K0R, 78K0]
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Programmer (Unit/SW) | Renesas |
Simulator for e² studio of RL78 Family Simulator for RL78 Family [Support IDE: e² studio] (Note: This product is included in the Renesas IDE "e² studio" and is not available separately.)
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Simulator | Renesas |
RL78 Web Simulator Right online tools to support initial evaluation of the low power consumption RL78 Family. Lineup: MCU Simulator Online and Current Consumption Calculator. Free of charge.
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Simulator | Renesas |
QE for Current Consumption: A Dedicated Tool for Current Measurement Development 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]
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Solution Toolkit | 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”)
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IDE and Coding Tool | Renesas |
e² studio - information for RL78 Family Eclipse-based Renesas integrated development environment (IDE).
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IDE and Coding Tool | Renesas |
IAR Embedded Workbench for Renesas RL78 IAR Embedded Workbench provides extensive support for RL78 devices. IAR Embedded Workbench is a complete set of development tools with leading optimization technology for creating powerful automotive applications.
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IDE and Coding Tool | IAR Systems |
Renesas IAR Embedded Workbench Device-Support-Packages Renesas IAR Embedded Workbench Device-Support-Packages include all device-specific files to be used with the Embedded Workbench IDE.
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IDE and Coding Tool | Renesas |
Reality AI Utilities Round-trip workflow for AI development and performance validation allowing to collect data, optimize models, and deploy directly to Renesas hardware
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Solution Toolkit | Renesas |
17 items
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Sample Code
Boards & Kits
Household Gas Alarm Reference Design
The Household Gas Alarm is a system that warns people with a flashing LED and buzzing alarm as soon as a change in carbon monoxide concentration is detected due to gas leakage or incomplete combustion. Home safety levels could be improved with this simple device.
This Household Gas Alarm...
Infrared Human Sensor Reference Design
This Infrared Human Sensor reference design detects human presence/absence using an infrared sensor, and turns on/off a high brightness LED automatically. It can be applied to a wide range of applications including office lights and automatic doors.
The infrared LED sending signal is controlled...
RL78/G10 (R5F10Y16) Target Board
As a CPU board usable in connection with the on-chip debugging emulator E2, E2 Lite, E1(discontinued product), this product achieves simple and easy evaluation of the target MCU.
Information on the discontinuation of E1 emulator production
We have already discontinued production of the E1...
RL78/G10 (R5F10Y47) CPU Board
As a CPU board usable in connection with the on-chip debugging emulator E1 or MINICUBE2, this product achieves simple and easy evaluation of the target MCU.
Smart Power Strip Reference Design
The Smart Power Strip is a popular household appliance, which is widely used in intelligent linkage control and power saving of connected devices. This Smart Power Strip reference design features the RL78/G10 low power consumption, small package MCU. It can control the power supply of multiple...
Window Alarm with Buzzer Reference Design
This is a reference design that could be applied to windows, door entrances, and other points of entry. When a vibration caused by an outside force is detected, an alarm will sound to scare off intruders. This Window Alarm with Buzzer solution features the RL78/G10 general-purpose MCU's...
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Product Options
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