Features
- CPU: RL78 core, Max. 32MHz
- Voltage: 1.6V to 5.5V
- Package: 48 to 64-pin HWQFN, 80-pin LFQFP
- Memory: SRAM Max. 4KB, Program Flash Max. 64KB
- Timer: 16-bit Timer (ch) x 8, 8-bit Timer (ch) x 2, Watchdog Timer (ch) x 1, Interval Timer x 1 ch
- PWM: PWM Output x 6
- Analog function: 12-bit A/D Converter (ch) x 17, 8-bit D/A Converter (ch) x 4
- On-chip Oscillator Freq. (MHz): 32
- Others: RTC, Power-On Reset, Low Voltage Detection
RL78/G1E Block Diagram
Description
The RL78/G1E microcontroller is based on the RL78/G1A and has built-in analog front-end (AFE) for sensor applications. The AFE circuit contains configurable amplifiers capable of various amplifier configurations, a gain adjustment amplifier, filters, D/A converters, and a temperature sensor, which are suitable for processing small sensor signals.
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- Home Appliance
- Healthcare
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- IDE and Coding ToolRenesas 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 ToolEclipse-based Renesas integrated development environment (IDE).
- IDE and Coding ToolIAR 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.Provider: IAR Systems
- IDE and Coding ToolRenesas IAR Embedded Workbench Device-Support-Packages include all device-specific files to be used with the Embedded Workbench IDE.
- Compiler/AssemblerC Compiler Package for RL78 Family [IDE: CS+, e² studio]
- Compiler/AssemblerC Compiler Package for the RL78 and 78K Families [IDE: CS+]
- Solution ToolkitDevelopment 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 ToolkitRound-trip workflow for AI development and performance validation allowing to collect data, optimize models, and deploy directly to Renesas hardware
- EmulatorOn-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RH850, RL78, RX, V850, 78K0R, 78K0, R8C]
- EmulatorOn-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX, RISC-V MCU]
- EmulatorOn-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]
- EmulatorOn-chip debugging emulator. Also available as a flash memory programmer. For RX600 or RX700 Series MCU, trace functions and Real-time RAM monitor functions available. For MCUs other than RX600 or RX700, the available debugging function corresponds to that of E2 Emulator Lite. [Support MCU/MPU: RX, RL78, RH850, V850, 78K0R, 78K0, R8C]
- EmulatorFull-spec emulator for RL78 MCUs. High-performance debugging functions such as time measurement, coverage, and trace. In addition, a self-testing function detects faults in the IECUBE and performs maintenance.
- Programmer (Unit/SW)On-chip debugging emulator available as a flash memory programmer [Available flash programming software: Renesas Flash Programmer or Flash Development Toolkit] [Support MCU/MPU and devices: RX, RL78, RH850, V850, 78K0R, 78K0, R8C, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver]
- Programmer (Unit/SW)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, RISC-V MCU, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver]
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- Search our extensive knowledgebase, designed to help customers with their FAQs.
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- IDE and Coding ToolRenesas 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 ToolEclipse-based Renesas integrated development environment (IDE).
- IDE and Coding ToolIAR 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.Provider: IAR Systems
- IDE and Coding ToolRenesas IAR Embedded Workbench Device-Support-Packages include all device-specific files to be used with the Embedded Workbench IDE.
- Compiler/AssemblerC Compiler Package for RL78 Family [IDE: CS+, e² studio]View More (33)
Software & Tools (33)
- Sample CodeProvides information for deploying FFT (Fast Fourier Transform) library.
- View More (30)
Sample Code (30)
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Development ToolUniversal third-party programmers support a wide range of Renesas programmable devices across both off-board and on-board programming modes.Provided By: Elnec s.r.o.- Development ToolProvides high-volume automated programming systems engineered for factory-scale production, enabling efficient handling of a wide range of integrated circuit (IC) devices. Optimized for microcontrollers (MCUs) and flash memory, the systems support tube, tape, and tray input/output configurations for flexible manufacturing integration. Advanced auto-teach alignment capabilities ...Provided By: DediProg Technology Co., Ltd.
- Development ToolThe AH-480 automated programming system is built around a patented rotary robotic arm equipped with dual-sided vacuum nozzles, enabling high-speed, high-precision IC pick-and-place operations. The system integrates 16 units of the latest LEAP universal programmers to deliver stable, high-throughput programming performance. Designed for ...Provided By: LEAP ELECTRONIC CO., LTD.
- Development ToolProvides universal device programming systems combining algorithms, process-control software, and socket modules for Renesas microcontroller production. Enables high-volume programming across the RA, RX, RL78, RH850, RZ, R8C, V850, M16C, H8, H8SX, H8S, SH, 78K and Synergy families using 9th- and 10th-generation universal site technology. Supports new socket ...Provided By: BPM Microsystems
- Development ToolBSMART delivers a versatile, portable interfacing solution for seamless operation on silicon devices anytime and anywhere. Its compact, pocket-sized design supports both laboratory and on-site interventions. Managed via Ethernet LAN, USB-UART, or Bluetooth® through the BSMART App, it interfaces with microprocessors and serial memories using standard ...Provided By: SMH Technologies S.r.l.View More (44)
Partner Solutions (44)
Support Communities
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SPI, W5500, RL78/G1F R5F11BLE
Greetings, I want to connect a W5500 Ethernet Port with a RL78/G1F R5F11BLE. Can Someone provide a Library for SPI, that I could use? I'm using IAR and Aplilet. An example code with many comments would be great. Thanks.
Aug 28, 2019 -
Version 2.1 of e2 studio to be released to the web on the 30th of September
The following link is for the PDF of the release note for the new 2.1 e2 studio to be released on Monday September 30th. ( LINK: http://renesasrulz.com/members/michaelquirk/files/e2studio/e2studio_5F00_v2.1_5F00_releasenote.pdf.aspx )
Sep 20, 2013
Knowledge Base
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Tell me the points to be aware of when using the RL78 Code Generator with the WDT.
In the RL78 Code Generator, the Watchdog Timer (WDT) is set to 'Enabled' by default, as shown in the diagram below. To avoid unintended resets by the WDT, please either select 'Disabled' for the 'Watchdog Timer Operation Setting' or add a program to clear the Watchdog Timer counter.
Dec 10, 2024 -
If RL78 Accepts External Interrupt Requests That Occur Immediately After Reset
No, that interrupt request will not be accepted. After a reset, the registers are initialized to the state of no interrupt request and no interrupt processing allowed, and therefore are in a state in which no external interrupt request can be accepted. Refer to the user’s manual of each ...
May 25, 2018 -
RL78 Family: CC-RL Multiplication Behavior with Hardware MDA
... G1M, RL78/G1N RL78-S2 core: RL78/G12, RL78/G13, RL78/G13A, RL78/G1A, RL78/G1C, RL78/G1D, RL78/G1E, RL78/G1P, RL78/I1A, RL78/L12, RL78/L13, RL78/D1A, RL78/F12 RL78-S3 core: RL78 ...
Nov 6, 2025
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