RL78/F13 microcontrollers are successors to the 78K0R and R8C, are available in a 20 to 80-pin, 16KB to 128KB flash memory lineup, and realize the industry's lowest level of consumption current. They have a built-in CAN module and LIN module for automotive interfaces, and in addition to the functional safety features of the RL78/F12, a RAM ECC function, PLL lock function, port output state monitoring, stack overflow detection, dedicated WDT oscillator, and more have also been added. Since a more highly reliable system can be built, these microcontrollers can be used for industrial applications and of course automotive applications.

Need help figuring out what you need to get started? Jump to the Design Support section for details.


  • CPU: RL78 core, Max. 32MHz
  • Voltage: 2.7V to 5.5V
  • Package: 32 to 48-pin HVQFN, 48 to 80-pin LFQFP, 20 to 30-pin LSSOP
  • Memory: SRAM Max. 8KB, Program Flash Max. 128KB
  • PWM: PWM Output x 16, 3-phase PWM Output Function
  • Analog function: 10-bit A/D Converter (ch) x 8
  • On-chip Oscillator Freq. (MHz): 64M, 48M, 32M, 24M, 16M, 12M, 8M, 4M, 1M Low-speed Oscillator 15kHz
  • Others: PLL, RTC, Power-On Reset, Low Voltage Detection


  • Car Audio
  • Body
  • Chassis & Safety
  • HEV/EV
  • Motor Control

Design Support

RL78 Family FAQs

Find answers to common questions, support articles and development hints.

Contact Support

Contact sales or technical support.

RenesasRulz Forum

Browse material, post questions and join moderated discussion related to Renesas products.

High Temperature: Ta = 150°C Support

To order an RL78/F13 MCU with Ta = -40 °C to 150 °C specification, please provide the order code and the application temperature mission profile for verification to Renesas Support.

Hardware Tools

Starter Kits

Starter Kit Description Featured Documents Ordering
  • Target board QB-R5F10BMG-TB which contains an RL78/F13 device with 80 pins and 128KB Flash memory
  • E1 OCD emulator (HW – OCD and flash programmer)
  • IAR EWRL78 KickStart Edition (SW – compiler from IAR with limited feature set)
  • Quick-Start Guide (documentation with SW examples)
pdf_icon_for_table.png User's Manual
pdf_icon_for_table.png Quick Start Guide
Contact Us

Programming Tools

Programming Tools Description Featured Documents Ordering
RTE0T00020KCE00000R E2 Emulator
On-chip debugging emulator for RH850 family and RL78 family. Also available as a flash memory programmer.
pdf_icon_for_table.png User's Manual Buy
R0C00000FDW13R Renesas Flash Programmer (Programming GUI)
The Renesas Flash Programmer provides usable and functional support for programming the on-chip flash memory of Renesas microcontrollers in each phase of development and mass production.
  • A simple GUI makes operations easy, even for first-time developers
  • PC-controlled programming via the E1 emulator or E2 emulator, a serial or USB connection
pdf_icon_for_table.png User's Manual Free Download

Software Tools

Software Libraries

Software Library Featured Documents Download
Flash Self Programming Library (SelfLib_RL78) (Type T01, European Release) pdf_icon_for_table.png User's Manual archive Software
Data Flash Access Library (Type T01, European Release) pdf_icon_for_table.png User's Manual archive Software
EEPROM Emulation Library (EEPROM_EMULATION_RL78) (Type T01, European Release) pdf_icon_for_table.png User's Manual archive Software

Software Tools

Software Featured Documents Download
Applilet3 Code Generator pdf_icon_for_table.png User's Manual archive Software

Compiler Toolchain

Company Company Logo Description
IAR Systems
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.

Third-Party Support

Company Description  
SimuQuest Logo
SimuQuest’s QuantiPhi enables driver configuration and production code generation, seamlessly integrated with Simulink. QuantiPhi detects and resolves inconsistencies in real-time and automatically optimizes chip settings.
Learn More
QuantiPhi chip configuration and driver integration tool