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Overview

Description

The RL78/F23 next-generation super low-power automotive microcontrollers are ideal for realizing future highly reliable smart actuators and sensors, as well as low-end body ECUs. As an innovative prolongation of the known RL78/F1x MCUs, the RL78/F23 can cover prospective market requirements. With its increased CPU performance, high-temperature capability, and enhanced peripheral feature set, RL78/F23 is a perfect fit for various applications.

RL78/F2x products are designed according to ISO 26262 and provide functional safety (FuSa) support up to ASIL B. They support up to the EVITA-Light security standard or more. An AES crypto module can handle key lengths of up to 256 bits and supports secure boot and authentication. To further boost the calculation performance for BLDC (FOC) motor control and DC/DC control systems, RL78/F2x is equipped with the unique application accelerator IP, to off-load complex trigonometric and arithmetic processing.

RL78/F2x MCUs are fully hard- and software upwards compatible to RL78/F1x, enabling software reuse.

Features

  • Key Features
    • RL78 core, Max. 40MHz
    • 128KB Flash
    • 12KB RAM
    • 12-bit A/D converter
    • Motor control: DC and BLDC - Field Oriented Control
    • Application accelerator unit
    • Optimized DC/DC converter support
    • High-temperature support: up to Ta = 150°C
    • Super low-power consumption
  • State-of-the-Art Interfaces
    • LIN, UART, SPI, I2C, SENT
    • 16 x PWM output
  • Support for FuSa and Security
    • Security module with EVITA-Light support
    • ISO 26262 ASIL B
  • Extensive ecosystem supporting the latest standards concerning tools, hardware and software

Comparison

Applications

Documentation

Design & Development

Software & Tools

Software & Tools

Software title
Software type
Company
E2 emulator [RTE0T00020KCE00000R]
On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX, RISC-V MCU]
Emulator Renesas
E2 emulator Lite [RTE0T0002LKCE00000R]
On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]
Emulator Renesas
Renesas Flash Programmer (Programming GUI)
Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU Renesas Synergy, DA1453x, DA1459x, DA1469x, DA1470x, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78K0R, 78K0]
Programmer (Unit/SW) Renesas
Code Flash Libraries (Flash Self Programming Libraries)
Libraries for the reprogramming of code area flash memory, including EEPROM emulation libraries for the code areas of 78K-family products
Self Programming Library (Flash Library) Renesas
Data Flash Libraries
Libraries for the reprogramming of data flash memory, including EEPROM emulation libraries for the data areas of RL78-family products
Self Programming Library (Flash Library) Renesas
IAR Embedded Workbench for Renesas RL78
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.
IDE and Coding Tool IAR Systems
Renesas IAR Embedded Workbench Device-Support-Packages
Renesas IAR Embedded Workbench Device-Support-Packages include all device-specific files to be used with the Embedded Workbench IDE.
IDE and Coding Tool Renesas
RL78 Motor Control Peripheral Blockset
Provides simulation blocks that reproduce hardware for motor/inverter control with high accuracy.
Model-Based Development Renesas
8 items

Software Downloads

Type Title Date
Device File - Partner Tool Log in to Download ZIP 166 KB
Device File - Partner Tool Log in to Download ZIP 165 KB
2 items

Sample Code

Sample Code

Filters
Type Title Date Date
Sample Code
[Toolchains=CC-RL|V1.12.00;LLVM for Renesas RL78|10.0.0.202207;IAR C/C++ Compiler for Renesas RL78|v.5.10.32.27.16]
Log in to Download ZIP 29.01 MB Compiler: CC-RL, ICCRL78 IDE: e2 studio, IAR EWRL78
Sample Code
[Toolchains=CC-RL|V1.12.00;LLVM for Renesas RL78|10.0.0.202207;IAR C/C++ Compiler for Renesas RL78|v.5.10.32.27.16]
Log in to Download ZIP 9.17 MB Compiler: CC-RL, ICCRL78 IDE: e2 studio, IAR EWRL78
Sample Code
[Toolchains=CC-RL|V1.12.00;IAR Compiler for RL78|v.4.21.3.2447]
Log in to Download ZIP 2.02 MB
Application: Automotive Security
Compiler: CC-RL, ICCRL78 Function: Security IDE: CS+ for CC, IAR EWRL78
Sample Code
[Toolchains=CC-RL|V1.11.00;IAR Compiler for RL78|v.4.21.3.2447]
Log in to Download ZIP 3.40 MB
Application: Automotive Security
Compiler: CC-RL, ICCRL78 Function: Security IDE: CS+ for CC, IAR EWRL78
Sample Code Log in to Download ZIP 1.35 MB
Application: Building Automation
Compiler: CC-RL, IAR EWRL78/ICCRL78 Function: Security IDE: CS+ for CC
Sample Code Log in to Download ZIP 868 KB
Application: Consumer Electronics, Industrial
Compiler: ICCRL78 Function: Application Example, Other peripherals IDE: IAR EWRL78
Sample Code Log in to Download ZIP 11.45 MB
Application: Industrial
Compiler: CC-RL, ICCRL78, LLVM Function: BSP, Communication Interface, Software Package IDE: CS+, e2 studio, IAR EWRL78
7 items

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Diagram of ECAD Models

Product Options

Applied Filters:

Support

Support Communities

Support Communities

Get quick technical support online from Renesas Engineering Community technical staff.
Browse FAQs

FAQs

Browse our knowledge base of common questions and answers.
Submit a Ticket

Submit a Ticket

Need to ask a technical question or share confidential information?

Partners

FPT Automotive

Founded in 2005, FPT Automotive employs nearly 5,000 engineers to advance SDV technology with a focus on safety and seamless integration. MaaZ-Lite is a streamlined and cost-effective version of MaaZ that supports standardized automotive software development with full AUTOSAR Classic compliance. FPT Automotive is a partner of SCSK supporting the global markets outside Japan.

SCSK Corporation

SCSK provides the QINeS-Lite software platform to maximize the performance and ensure stable operation of RL78/F24 and its sequel products. QINeS-Lite is developed based on 10 years of experience since SCSK launched its first AUTOSAR-compatible "QINeS-BSW" in Japan with the consideration of future market trends to meet the needs of the Japan market.

Murata Manufacturing Co., Ltd.

Temperature detection solution: Combine with an NTC thermistor for precise high-temperature monitoring.

Support Communities

  1. about RFD & FSL lib in RL78/F23

    Hello. Renesas team Is FSL lib available in RL78/F23? The Flash Self-programming Library Type T01 document title says RL78 Series, but I would like to check if it is also supported in F23. Renesas Flash Driver RL78 Type 02 V1.00 for RL78 / F2x is described ...

    Aug 19, 2024
  2. Questions about Serial Programming Interface in RL78/F23

    ... F23,F24 hardware specifications) 1. The reset and TOOL0 data (0x00 or 0x3A) shown in the figure are transmitted from the debugging tool(e2light) to RL78/F23.  1-1 If 1 is correct, do I choose whether to use Single-line or Dual-line in PCtool (e2light)? 2. If ...

    Feb 11, 2025
  3. PLL Clock of RL78/F23

    ... use Fpll as the source of the clock, is that right?I referred to Figure 5-1 (Block Diagram of Clock Generator) of spec document(RL78/F23 User's Manual(R01UH0944Ej0100)). Is it correct that the rest of the peripherals seem to use the same clock source as the ...

    Mar 12, 2025
View All Results from Support Communities (13)

FAQs

  1. RL78/F23, F24 position, target application

    RL78/F23,F24 are positioned as a high-function, high-performance products in RL78 family. Its security and safety make it suitable for all low-end applications expected in automotive E/E architectures.Like the RL78/F1x, it can also be used in non-automotive applications requiring ...

    Jan 31, 2023
  2. RL78/F23, RL78/F24: Development environment (emulators, flash programmers)

    E1 emulator and PG-FP5 (flash programmer) are not compatible with the RL78/F23, F24. Please use the E2 emulator, E2 emulator Lite, and PG-FP6 (flash programmer).

    Jan 31, 2023
  3. RL78/F23, RL78/F24: Development environment (evaluation boards)

    We have a simple target board using RL78/F24 100pin LQFP package. This also covers the functionality of RL78/F23, so it can also be used for RL78/F23. We also have a Renesas Solution Starter Kit that allows you to experience control of BLDC, security, etc.

    Jan 31, 2023
View All Results from FAQs (9)

Videos & Training

Explore the benefits that RL78/F2x MCUs bring to smart actuators and sensors.