RL78/G12 microcontrollers balance the industry's lowest level of consumption current (CPU: 63 μA/MHz, standby (STOP): 230 nA) and a high performance of32.4 DMIPS (24 MHz). They have an on-chip oscillator, data flash, A/D converter, and more. Built-in safety features (function that detects illegal operation of hardware) enable support for the household appliance safety standard (IEC/UL 60730). With a 20 to 30-pin compact package lineup, these microcontrollers are perfect for sub-microcontrollers of small appliances and consumer and industrial equipment.

Features

  • CPU: RL78 core, Max. 24MHz
  • Voltage: 1.8V to 5.5V
  • Package: 24-pin HWQFN, 20 to 30-pin LSSOP
  • Memory: SRAM Max. 2KB, Program Flash Max. 16KB
  • Timer: 16-bit Timer (ch) x 8, 8-bit Timer (ch) x 4, Watchdog Timer (ch) x 1, 12-bit Interval Timer x 1 ch
  • PWM: PWM Output x 7
  • Analog function: 10-bit A/D Converter (ch) x 8
  • On-chip Oscillator Freq. (MHz): High-Speed: 1, 4, 8, 12, 16, 24MHz
    Low-speed: 15kHz
  • Others: Power-On Reset, Low Voltage Detection

Applications

  • Office
  • Home Appliance
  • Healthcare
  • Security

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
RL78/G12 Datasheet Datasheet PDF 1009 KB
User Guides & Manuals
List of MCUs supported by PG-FP5 日本語 Manual PDF 214 KB
PG-FP6 V1.05 Flash Memory Programmer User's Manual 日本語 Manual PDF 3.13 MB
RL78/G12 User's Manual: Hardware 日本語 Manual PDF 5.33 MB
CS+ V8.04.00 Integrated Development Environment User's Manual: Project Operation 日本語 Manual PDF 5.50 MB
Flash Self-programming Library Type T01, European Release Manual PDF 806 KB
- Flash Self-programming Library Type T01, European Release Manual PDF 806 KB
RL78/G11 Promotion Board User's Manual Manual PDF 1.84 MB
RL78/G11 Promotion Board - Quick Start Guide Quick Start Guide PDF 816 KB
RL78 Software Migration Guide CS+ to e2 studio Migration (CC-RL) 日本語 Guide PDF 3.23 MB
RL78 family User's Manual: Software 日本語 Manual PDF 1.45 MB
Technical Updates
Restriction regarding Watchdog timer interrupt 日本語 Technical Update PDF 154 KB
Correction for Incorrect Description Notice RL78/G12 Descriptions in the Hardware User's Manual Rev. 2.10 Changed 日本語 Technical Update PDF 125 KB
Correction for Incorrect Description Notice RL78/G12 Descriptions in the Hardware User's Manual Rev. 2.10 Changed 日本語 Technical Update PDF 118 KB
Application Notes & White Papers
RL78/G14, H8/36109 Migration Guide from H8 to RL78: ROM (Flash memory) 日本語 Application Note PDF 283 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Power supply circuit 日本語 Application Note PDF 224 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Band-Gap Regulator, Power-On Reset & Low-Voltage Detection Circuits 日本語 Application Note PDF 264 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Watchdog Timer 日本語 Application Note PDF 248 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Realtime Clock (RTC) 日本語 Application Note PDF 380 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Power-Down Modes 日本語 Application Note PDF 501 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Clock Pulse Generators 日本語 Application Note PDF 383 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: I/O Ports 日本語 Application Note PDF 216 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Exception Handling 日本語 Application Note PDF 378 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: CPU architecture 日本語 Application Note PDF 290 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: A/D Converter 日本語 Application Note PDF 419 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: IIC2 日本語 Application Note PDF 261 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: SCI3 日本語 Application Note PDF 439 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: 14-Bit PWM 日本語 Application Note PDF 304 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Timer V 日本語 Application Note PDF 481 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Timer B1 日本語 Application Note PDF 323 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Timer RC 日本語 Application Note PDF 413 KB
RL78/G14, H8/36109 Migration Guide from H8 to RL78: Timer RD 日本語 Application Note PDF 551 KB
- Onboard LED Flashing Control (Arduino API) 日本語 Application Note PDF 620 KB
- Onboard LED Flashing Control (Arduino API) 日本語 Application Note PDF 514 KB
- RL78/G14 Modbus ASCII/RTU 日本語 Application Note PDF 1.77 MB
RL78/G14 Modbus ASCII/RTU 日本語 Application Note PDF 1.77 MB
PG-FP6 Usage of Communications Commands 日本語 Application Note PDF 369 KB
RL78/G12 Remotely Controllable Button Pusher 日本語 Application Note PDF 533 KB
Renesas Flash Programmer Usage from the Command Line 日本語 Application Note PDF 208 KB
Intelligent Battery Charger Design for Power Tools using RL78/G12 MCU 日本語, 简体中文 White Paper PDF 543 KB
- RL78/G12 Timer Array Unit (Interval Timer) CC-RL 日本語 Application Note PDF 461 KB
- RL78/G12 A/D Converter (Software Trigger and Sequential Conversion Modes) CC-RL 日本語 Application Note PDF 444 KB
RL78/G12 Timer Array Unit (Interval Timer) CC-RL 日本語 Application Note PDF 461 KB
RL78/G12 A/D Converter (Software Trigger and Sequential Conversion Modes) CC-RL 日本語 Application Note PDF 444 KB
RL78 Family Software-based Part Number Reading Out 日本語, 简体中文 Application Note PDF 242 KB
RL78 Family C compiler CC-RL Programming Techniques 日本語 Application Note PDF 1.21 MB
- RL78 Family RL78 Hardware CRC Functions Application Note PDF 1.22 MB
RL78 Family RL78 Hardware CRC Functions Application Note PDF 1.22 MB
Replacement Guide for R8C Family to RL78 Family (CcnvNC30) 日本語, 简体中文 Application Note PDF 987 KB
Replacement Guide from 78K0 Family to RL78 Family (CcnvCA78K0) 日本語, 简体中文 Application Note PDF 1.47 MB
- RL78 Family Real-Time-Clock Watch Error Correction function Application Note PDF 609 KB
RL78 Family Real-Time-Clock Watch Error Correction function Application Note PDF 609 KB
RL78 Family SHA Hash Function Library Introduction Guide 日本語 Application Note PDF 165 KB
- RL78/G12 Self-Programming (Received Data via IIC) CC-RL 日本語 Application Note PDF 393 KB
- RL78/G12 Self-Programming (Received Data via CSI) CC-RL 日本語 Application Note PDF 322 KB
- RL78/G12 Self-Programming (Received Data via UART) CC-RL 日本語 Application Note PDF 384 KB
- RL78/G12 Self-Programming (Received Data via IIC) 日本語 Application Note PDF 400 KB
- RL78/G12 Self-Programming (Received Data via CSI) 日本語 Application Note PDF 300 KB
- RL78/G12 Self-Programming (Received Data via UART) 日本語 Application Note PDF 361 KB
- RL78/G12 Flash Data Library Type04 日本語 Application Note PDF 307 KB
- RL78/G12 Flash Data Library Type04 日本語 Application Note PDF 278 KB
- RX Family, RL78 Family, 78K0R/Kx3-L Spansion S25FLxxxS MirrorBit® Flash Non-Volatile Memory Control Software 日本語 Application Note PDF 801 KB
- RL78/G12 Serial Array Unit (UART Communication)