RL78/G1E

特性

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

描述

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.

应用

Office
Home Appliance
Healthcare
Security

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应用说明
英语
RL78 Family FFT Library: Deployment Guide Rev.1.10
PDF 1.08 MB R20AN0150EJ0110 Rev.1.10 日本語 2025年12月22日
Provides information for deploying FFT (Fast Fourier Transform) library.
相关文件：
示例代码
应用说明
英语
RL78 Family SHA Hash Function Library: Introduction Guide Rev.2.03
PDF 522 KB R20AN0211EJ0203 Rev.2.03 日本語 2025年8月01日
AI 生成的摘要: The RL78 Family SHA Hash Function Library includes various source files, sample programs, and documentation to support SHA-1 and SHA-256 hash functions. It provides API functions to generate SHA-1 and SHA-256 hash digests, with SHA-256 support enhanced when combined with the RL78/G24 FAA accelerator. The library supports specific compiler environments and requires building designated source files depending on the API used. The FAA accelerator improves SHA processing speed and supports only SHA-256 with certain compilers.
相关文件：
示例代码
发行说明
英语
e² studio 2025-04.1 Release Note
PDF 3.09 MB R20UT5674EG0101 Rev.1.01 2025年5月21日
EOL 通告
英语
End Of Life Notice [SAF-B-24-0011]
PDF 8.06 MB SAF-B-24-0011 日本語 2024年6月12日
应用说明
英语
IEC60730/60335 Self Test Library of CARL78 for RL78 MCU extended Application Notes Rev.1.20
PDF 1.96 MB R01AN4823EJ0120 Rev.1.20 日本語 2024年5月20日
AI 生成的摘要: The document details self test software routines for RL78 microcontrollers to ensure compliance with IEC60730/60335 Class B safety standards. It covers CPU register tests, internal Flash and SRAM memory checks, system clock verification using independent clock sources, and peripheral tests such as A/D converters and watchdog timers. The self test library offers modular APIs for integration into applications, supporting reliability and safety in automatic electronic control systems like household appliances. The document also includes example usage, benchmarking, and additional hardware resources to assist developers in implementing robust safety functions.
相关文件：
示例代码
应用说明
英语
RL78/G14 Modbus ASCII/RTU Application Note Rev.2.00
PDF 1.55 MB R01AN5380EJ0200 Rev.2.00 日本語 2023年10月20日
AI 生成的摘要: Modbus communication over UART is implemented using the RL78 microcontroller and Renesas RS-485 transceiver, supporting both Modbus ASCII and RTU modes. The system uses GPIO to control send/receive permissions and TAU0 timers to measure intervals between characters and frames, ensuring proper timing in communication. The network operates in a single-master/multi-slave configuration with up to 247 slaves, each having a unique address. The document details hardware configurations, UART communication settings, supported function codes, and interrupt handling for both master and slave modes. It also includes software structure, constants, variables, and instructions for running the system in various environments. PCB design files typically bundled include BOM, schematic, and Gerber files.
相关文件：
示例代码
应用说明
英语
RL78/G12 Remotely Controllable Button Pusher Rev.1.11
PDF 437 KB R01AN5394EJ0111 Rev.1.11 日本語 2023年8月04日
AI 生成的摘要: The document explains how to control a DC motor-driven button pusher remotely via a network using the RL78/G12 microcontroller and the ESP-WROOM-02 Wi-Fi module. The RL78/G12 obtains an IP address from an access point, connects to a TCP server, and waits for commands. It controls the motor through port outputs and PWM signals to perform normal rotation, stop, and inverse rotation based on received TCP data. The communication uses ASCII-coded packets, and the motor operation timing is adjustable by software. The document also details hardware configuration, software structure, and operation conditions for reliable performance.
相关文件：
示例代码
应用说明
英语
RL78 Family SPI mode MultiMediaCard Driver: Introduction Guide Rev.2.01
PDF 556 KB R20AN0158EJ0201 Rev.2.01 日本語 2022年11月09日
AI 生成的摘要: The RL78 Family SPI mode MultiMediaCard (MMC) driver enables communication between RL78 MCUs and MMCs using SPI mode. It supports multiple devices via CS signals and operates with commands for single or multiple block reads/writes. The driver is OS-independent and defines one sector as 512 bytes. The package includes source code, common functions, and configuration files for various compilers and clock speeds, facilitating integration and application development.
相关文件：
示例代码
应用说明
英语
RL78 Family Open Source FAT File System M3S-TFAT-Tiny: Introduction Guide Rev.2.01
PDF 294 KB R20AN0159EJ0201 Rev.2.01 日本語 2022年11月09日
AI 生成的摘要: The document outlines the structure and specifications of the TFAT library for the RL78 family, including supported FAT types (FAT12, FAT16, FAT32) and filename format (8.3). It details the software stack architecture, development environment requirements, and version information. Memory requirements for ROM, RAM, and stack sizes are specified, along with the sizes of key data structures like FATFS, FIL, and DIR. The library supports one drive and logical sector size is 512 bytes.
相关文件：
示例代码
应用说明
英语
RL78 Family M3S-S2-Tiny: Introduction Guide Rev.2.01
PDF 237 KB R20AN0122EJ0201 Rev.2.01 日本語 2022年9月16日
AI 生成的摘要: The document details the development environment and library specifications for the RL78 Family Sound Playback/Compression System using the Original ADPCM Codec. It specifies compatible toolchains for CC-RL and IAR C/C++ compilers, including IDE versions, compiler versions, and code generator tools. ROM, RAM, and stack size requirements for the provided libraries are outlined. Developers must specify the "near" symbol for pointer arguments in all memory models.
相关文件：
示例代码
应用说明
英语
RL78 Family AES Library: Introduction Guide Rev.2.01
PDF 303 KB R20AN0151EJ0201 Rev.2.01 日本語 2022年6月30日
AI 生成的摘要: The AES Library for RL78 Family MCUs provides hardware-optimized AES encryption and decryption functions supporting 128-bit and 256-bit keys in ECB and CBC modes, along with a GCM library for Galois/Counter Mode operations. It supports RL78 MCUs with S2 and S3 cores, excluding smaller memory variants like RL78/G10. The package includes source code, header files, sample projects for various development environments (CC-RL, IAR, LLVM), and detailed API functions for encryption, decryption, and key scheduling. Users must select appropriate source files based on the API functions they intend to use. The library is fully tuned in assembly for performance and memory efficiency.
相关文件：
示例代码
应用说明
英语
e² studio Creating and executing build CMake project
PDF 1.11 MB R20AN0613EJ0201 Rev.2.01 日本語 2022年6月28日
AI 生成的摘要: This guide explains how to create and build CMake projects using e² studio. It covers installing necessary tools such as e² studio, CMake, and GNU Make, creating a new CMake project, and configuring the builder by disabling the default CDT Core Builder and adding CMake and Make commands. The instructions include setting up environment variables and specifying CMake command parameters to generate native build files from platform-independent CMakeLists.txt configurations.
应用说明
英语
RL78 Family RL78 Hardware CRC Functions
PDF 1.49 MB R01AN3530EU0110 Rev.1.10 2022年6月24日
AI 生成的摘要: The RL78 microcontroller family includes two hardware CRC functions: a High Speed CRC for code flash memory and a General Purpose CRC for any data range. The High Speed CRC operates in HALT mode using the CCITT-16 polynomial and processes 4-byte code flash words efficiently but cannot run concurrently with application code. The General Purpose CRC runs in CPU RUN mode, processes data byte-by-byte with bit-reversed input/output, and can operate alongside application code. Software examples and a Windows utility support these CRC functions.
相关文件：
示例代码
应用说明
英语
RL78 Family RL78 Internal Temperature Sensor Calibration (Using IAR Toolchain)
PDF 542 KB R01AN0988EU0110 Rev.1.10 2022年6月24日
AI 生成的摘要: The RL78 MCU family integrates an internal temperature sensor providing a voltage proportional to temperature, with a nominal output of 1.05V at 25°C and a sensitivity of -3.6mV/°C. The sensor connects internally to the ADC, allowing temperature monitoring without an external voltage reference. Calibration uses a simple single-point method to compensate for sensor offset. Temperature calculation involves ADC readings of both the internal sensor and internal voltage reference, with formulas provided for conversion. Oversampling improves ADC resolution, and both floating and fixed-point math implementations are demonstrated for efficient temperature computation.
相关文件：
示例代码
应用说明
英语
RL78/G10 Wi-Fi module (ESP-WROOM-02) control sample software for TCP/IP Slave Transmission/Reception Rev.1.10
PDF 745 KB R01AN4791EJ0110 Rev.1.10 日本語 2022年6月24日
AI 生成的摘要: The RL78/G10 controls the ESP-WROOM-02 Wi-Fi module via UART at 115200 bps using AT commands. It connects as a TCP/IP client to a server, supporting IEEE 802.11 b/g/n (2.4GHz), IPv4 TCP, WPA/WPA2 security, and AES encryption. The ESP-WROOM-02 operates in Flash Boot Mode executing firmware from flash memory, controlled through UART commands. The module supports Station, SoftAP, and SoftAP + Station modes, with this content focusing on Station mode where the module acts as a wireless client connected to an access point.
相关文件：
示例代码

手册和指南 (1)

手册 - 硬件
英语
RL78 Family User's Manual: Software Rev.2.30
PDF 1.3 MB R01US0015EJ0230 Rev.2.30 日本語 2022年4月22日

应用说明和白皮书 (106)

应用说明
英语
RL78 Family FFT Library: Deployment Guide Rev.1.10
PDF 1.08 MB R20AN0150EJ0110 Rev.1.10 日本語 2025年12月22日
Provides information for deploying FFT (Fast Fourier Transform) library.
相关文件：
示例代码
应用说明
英语
RL78 Family SHA Hash Function Library: Introduction Guide Rev.2.03
PDF 522 KB R20AN0211EJ0203 Rev.2.03 日本語 2025年8月01日
AI 生成的摘要: The RL78 Family SHA Hash Function Library includes various source files, sample programs, and documentation to support SHA-1 and SHA-256 hash functions. It provides API functions to generate SHA-1 and SHA-256 hash digests, with SHA-256 support enhanced when combined with the RL78/G24 FAA accelerator. The library supports specific compiler environments and requires building designated source files depending on the API used. The FAA accelerator improves SHA processing speed and supports only SHA-256 with certain compilers.
相关文件：
示例代码
发行说明
英语
e² studio 2025-04.1 Release Note
PDF 3.09 MB R20UT5674EG0101 Rev.1.01 2025年5月21日
应用说明
英语
IEC60730/60335 Self Test Library of CARL78 for RL78 MCU extended Application Notes Rev.1.20
PDF 1.96 MB R01AN4823EJ0120 Rev.1.20 日本語 2024年5月20日
AI 生成的摘要: The document details self test software routines for RL78 microcontrollers to ensure compliance with IEC60730/60335 Class B safety standards. It covers CPU register tests, internal Flash and SRAM memory checks, system clock verification using independent clock sources, and peripheral tests such as A/D converters and watchdog timers. The self test library offers modular APIs for integration into applications, supporting reliability and safety in automatic electronic control systems like household appliances. The document also includes example usage, benchmarking, and additional hardware resources to assist developers in implementing robust safety functions.
相关文件：
示例代码
应用说明
英语
RL78/G14 Modbus ASCII/RTU Application Note Rev.2.00
PDF 1.55 MB R01AN5380EJ0200 Rev.2.00 日本語 2023年10月20日
AI 生成的摘要: Modbus communication over UART is implemented using the RL78 microcontroller and Renesas RS-485 transceiver, supporting both Modbus ASCII and RTU modes. The system uses GPIO to control send/receive permissions and TAU0 timers to measure intervals between characters and frames, ensuring proper timing in communication. The network operates in a single-master/multi-slave configuration with up to 247 slaves, each having a unique address. The document details hardware configurations, UART communication settings, supported function codes, and interrupt handling for both master and slave modes. It also includes software structure, constants, variables, and instructions for running the system in various environments. PCB design files typically bundled include BOM, schematic, and Gerber files.
相关文件：
示例代码

查看更多 (106)

产品通告（产品变更、EOL 等） (4)

EOL 通告
英语
End Of Life Notice [SAF-B-24-0011]
PDF 8.06 MB SAF-B-24-0011 日本語 2024年6月12日
产品变更通告
英语
Unification of a JEDEC tray and a embossed carrier tape for LQFP package (Additional Information & Correction)
PDF 4.86 MB PC-WRP-A001C/E 日本語 2018年1月23日
产品变更通告
英语
Unification of a JEDEC tray and a embossed carrier tape for LQFP package ( PC-WRP-A001B/E )
PDF 3.74 MB PC-WRP-A001B/E 日本語 2017年3月08日
产品变更通告
英语
Unification of a JEDEC tray and a embossed carrier tape for LQFP package ( PC-WRP-A001A/E )
PDF 1.46 MB PC-WRP-A001A/E 日本語 2016年7月01日

勘误表和技术更新 (3)

技术更新
英语
Restriction regarding Watchdog timer interrupt
PDF 154 KB TN-RLx-A086A/E 日本語 2018年4月03日
技术更新
英语
Restriction regarding Watchdog timer (TN-RLx-A069A/E)
PDF 186 KB TN-RLx-A069A/E 日本語 2016年11月21日
技术更新
英语
Inner box change according to dampproof bag change and dampproof bag change
PDF 3.1 MB TN-WRP-A018A/E 日本語 2013年8月20日

其他 (6)

其他
英语
CE Conformity Declaration
PDF 86 KB D010818_24_V0430 2017年6月05日
其他
英语
RL78/G1E Oscillation circuit characteristics
登录后下载 PDF 79 KB D6000276 日本語 2016年9月29日
相关文件：
宣传手册
其他
英语
LGA Mounting Manual
PDF 1.02 MB R50ZZ0006EJ0100 Rev.1.00 日本語 2014年3月19日
其他
英语
RL78 family Test Module(2) RL78 Software Integration System
ZIP 224 KB D4800360TEST 2013年11月18日
相关文件：
宣传手册
其他
英语
RL78 family Test Module(1) RL78 Software Integration System
ZIP 224 KB D4800359TEST 2013年11月18日
相关文件：
宣传手册

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Microcontrollers with Built-in Smart Analog for Sensor and Measurement Applications

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