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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

Title language Type Format File Size Date
Datasheets & Errata
RL78/G12 Datasheet Datasheet PDF 1009 KB
[Evaluation Software] CS+ for CA,CX V4.05.00 (Single Download) 日本語 Software & Tools - Evaluation Software ZIP 483.78 MB
[Evaluation Software] CS+ for CC V8.05.00 (Single Download) 日本語 Software & Tools - Evaluation Software ZIP 719.07 MB
RL78/G12 Oscillation circuit characteristics 日本語 Software & Tools - Other PDF 78 KB
User Guides & Manuals
RL78 Software Migration Guide CS+ to e2 studio Migration (CC-RL) 日本語 Guide PDF 3.23 MB
RL78/G12 User's Manual: Hardware 日本語 Manual PDF 5.33 MB
Data Flash Access Library Type T02 (Tiny) Manual PDF 705 KB
Data Flash Access Library FDL-T01 RL78 Series Manual PDF 498 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 family User's Manual: Software 日本語 Manual PDF 1.45 MB
Data Flash Access Library Type T04 (Pico), European Release Manual - Development Tools PDF 594 KB
RL78/G11 Promotion Board - Quick Start Guide Quick Start Guide PDF 816 KB
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 (TN-RLx-A077B/E) 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 (TN-RLx-A077A/E) 日本語 Technical Update PDF 118 KB
Application Notes & White Papers
RL78 Family M3S-S2-Tiny: Introduction Guide 日本語 Application Note PDF 231 KB
RL78 Family FFT Library: Deployment Guide 日本語 Application Note PDF 244 KB
RL78/G14 Modbus ASCII/RTU (R01AN5380EJ0102) 日本語 Application Note PDF 1.76 MB
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: A/D Converter 日本語 Application Note PDF 419 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: CPU architecture 日本語 Application Note PDF 290 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: Exception Handling 日本語 Application Note PDF 378 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: IIC2 日本語 Application Note PDF 261 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: Power-Down Modes 日本語 Application Note PDF 501 KB
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: Realtime Clock (RTC) 日本語 Application Note PDF 380 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: Timer V 日本語 Application Note PDF 481 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: 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
7-Segment LED Lighting Control (Arduino API) 日本語 Application Note PDF 951 KB
Arduino API Introduction Guide 日本語 Application Note PDF 1.65 MB
RL78/G12 Remotely Controllable Button Pusher 日本語 Application Note PDF 533 KB
IEC60730/60335 Self Test Library of CARL78 for RL78 MCU extended Application Notes (R01AN4823EJ0110) 日本語 Application Note PDF 2.36 MB
IEC60730/60335 Self Test Library of CCRL78 for RL78 MCU extended Application Notes (R01AN4819EJ0110) 日本語 Application Note PDF 2.09 MB
CAN Controller Usage: Applications and Frequently Asked Questions Application Note PDF 1.81 MB
Random Number Generator Application Note PDF 560 KB
IEC60730/60335 Self Test Library of CCRL78 for RL78 MCU Application Notes 日本語 Application Note PDF 3.59 MB
RL78 Software Migration Guide Source Code Migration from Assembly Language to C Language CC-RL 日本語, 简体中文 Application Note PDF 1.64 MB
Current Consumption Tuning Solution for RL78 family (E2 Emulator, e² studio) 日本語 Application Note PDF 2.07 MB
Current Consumption Tuning Solution for RL78 family (E2 Emulator,CS+) 日本語 Application Note PDF 1.91 MB
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 (R01AN3862EJ0100) 日本語 Application Note PDF 461 KB
RL78 Family Software-based Part Number Reading Out 日本語, 简体中文 Application Note PDF 242 KB
IAR Embedded Workbench for RL78 Programming Techniques Application Note PDF 701 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
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/G12 Serial Array Unit (UART Communication) CC-RL (R01AN3146EJ0100) 日本語 Application Note PDF 331 KB
RX Family, RL78 Family, 78K0R/Kx3-L Micron Technology M25P Series Serial Flash memory Control Software 日本語 Application Note PDF 2.46 MB
RX Family, RL78 Family, 78K0R/Kx3-L Micron Technology M45PE Series Serial Flash memory Control Software 日本語 Application Note PDF 2.02 MB
RX Family, RL78 Family, 78K0R/Kx3-L Renesas R1EX25xxx Series Serial EEPROM Control Software 日本語 Application Note PDF 1.79 MB
RL78 Software Migration Guide Migrating from CA78K0R to CC-RL (CS+)