Features
- Key Features
- RL78 core, Max. 40MHz
- 256KB Flash
- 24KB RAM
- 12-bit A/D converter
- 8-bit D/A converter
- Comparator with 4-fold multiplexer
- Motor control: DC and BLDC - Field-oriented Control (FOC)
- 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
- CAN FD, LIN, UART, SPI, I2C, SENT
- 20 x PWM output
- Support for FuSa and Security
- Security module with EVITA-Light support
- ISO 26262 ASIL B
- AUTOSAR MCAL
- QINeS-Lite (manufactured by FPT Automotive): AUTOSAR MCAL (ASIL B) support
- Extensive ecosystem supporting the latest standards concerning tool, hardware, and software areas
Description
The RL78/F24 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/F24 can cover prospective market requirements. With its increased CPU performance, high-temperature capability, and enhanced peripheral feature set, the RL78/F24 is a perfect fit for various applications.
RL78/F2x products are designed according to ISO 26262 and support functional safety (FuSa) up to ASIL B. Additionally, partner-provided AUTOSAR MCAL (ASIL B) is also available. RL78/F2x products 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 field-oriented control (FOC) motor control and DC/DC control systems, RL78/F2x is equipped with the unique application accelerator IP to offload complex trigonometric and arithmetic processing.
To respond to the E/E automotive architecture trend, the RL78/F24 is equipped with a CAN FD interface. RL78/F2x MCUs are fully hardware and software compatible with RL78/F1x, enabling software reuse.
Parameters
| Attributes | Value |
|---|---|
| Program Memory (KB) | 256 |
| Data Flash (KB) | 16 |
| RAM (KB) | 24 |
| Carrier Type | Bulk (Tray), Full Carton (Tray), Tape & Reel |
| Supply Voltage (V) | 2.7 - 5.5 |
| I/O Ports | 25, 38, 52, 68, 86 |
| Temp. Range (°C) | Ta = -40 to +105, Ta = -40 to +125, Ta = -40 to +150 |
| Operating Freq (Max) (MHz) | 40 |
| USB FS (host ch/device ch) | ( 0 / 0 ) |
| SCI or UART (ch) | 4 |
| SPI (ch) | 3, 4 |
| I2C (#) | 4, 5 |
| CAN (ch) | 1 |
| CAN-FD (ch) | 1 |
| Wireless | No |
| LIN (#) | 2 |
| 16-Bit Timer (ch) (#) | 19 |
| 12-Bit A/D Converter (ch) | 10, 19, 24, 25, 31 |
| 10-Bit A/D Converter (ch) | 0 |
| 24-Bit Sigma-Delta A/D Converter (ch) | 0 |
| 12-Bit D/A Converter (ch) | 0 |
| 10-Bit D/A Converter (ch) (#) | 0 |
| 8-Bit D/A Converter (ch) | 1 |
| Capacitive Touch Sensing Unit (ch) | 0 |
| Segment LCD Controller | No |
| Security & Encryption | Secure Boot, AES, TRNG |
Application Block Diagrams
 | Low-End Camera Monitoring System A cost-effective, low-end camera monitoring system optimizes brightness with an MCU optical sensor and video processor. |
 | Cost-Effective Automotive Haptic Touch Key Module for Enhanced Driver Safety Touch interfaces with haptic feedback boost safety and user experience in advanced vehicle interiors. |
 | 48V/3kW Motor Control for 2/3 Wheelers The 48V/3kW motor control system features a scalable inverter design, phase overcurrent fault detection, and ASIL-B safety. |
 | Bidirectional GaN DC/DC Converter for 12V/48V EV/HEV Systems High-efficiency bidirectional GaN-based DC/DC converter ideal for 12V/48V EV and HEV systems. |
 | 12V Motor Controller Compact 12V BLDC motor controller with FOC or trapezoidal control for fast, efficient development. |
 | Remote Sensing with Inductive Position Sensor & CAN/LIN Remote sensing system boosts data security, enables ECU centralization, and reduces wiring in vehicles. |
Additional Applications
- Smart actuators
- Sensors ECUs
- Low-end body
Complete Your Design
Explore complementary products to elevate your design
Renesas Boards & Kits
RL78/F24 (R7F124FPJ) Target Board
As a CPU board usable in connection with the on-chip debugging emulator E2, E2 Lite, this product achieves simple and easy evaluation of the target MCU.
12 V Motor Control Evaluation System for RL78/F24
This brushless DC motor control evaluation kit supports motor control development using the RL78/F24 (48‑pin) MCU in a 12 V automotive power supply environment. It includes an inverter board with automotive‑grade components, sample software, and a permanent magnet synchronous motor to enable... Read More
RL78/F24 Starter Kit
The RL78/F24 starter kit includes the RL78/F24 target board “RTK7F124FPC01000BJ” and the E2 Lite, a Renesas Electronics on-chip-debug emulator with programming function.
Together with the software available on this landing page you can directly start evaluation of all microcontroller... Read More
RL78/F24 Security Renesas Solution Starter Kit
This RL78/F24 Security Renesas Solution Starter Kit is for evaluating security with the RL78/F24 super-low power automotive microcontroller.
This kit implements a series of security functions, such as encryption/decryption, CMAC generation/verification, random number generation, secure boot, and... Read More
Partner Boards & Kits
CAN Bus J1939 Bridge (for Heavy-Duty)
Reference Board for Motor Control Consulting Service
RL Family Microcontroller Board
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- IDE and Coding ToolRenesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0] (Note: CS+ is not generally promoted to U.S. and European customers.) (Note: To use Smart Configurator on CS+ for RL78/G23 and RX family MCUs, install the Smart Configurator for each MCU family separately downloading from ”Design & Support” > ”Development Tools” > ”Smart Configurator”)
- IDE and Coding ToolEclipse-based Renesas integrated development environment (IDE).
- IDE and Coding ToolIAR 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.Provider: IAR Systems
- IDE and Coding ToolRenesas IAR Embedded Workbench Device-Support-Packages include all device-specific files to be used with the Embedded Workbench IDE.
- Compiler/AssemblerC Compiler Package for RL78 Family [IDE: CS+, e² studio]
- Solution ToolkitDevelopment assistance tool helps to shorten the times taken in operations for the tuning of currents drawn. [Standard item in the "e² studio" and CS+ (CS+ for CC only) IDEs] [Support MCU/MPU: RX, RL78]
- Solution ToolkitRound-trip workflow for AI development and performance validation allowing to collect data, optimize models, and deploy directly to Renesas hardware
- Solution ToolkitRL78 Smart Configurator is a utility for combining software in ways that meet your needs. It simplifies the embedding of Renesas drivers in your systems through supports for importing middleware and drivers and configuring pins.
- EmulatorOn-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX, RISC-V MCU]
- EmulatorOn-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]
- Programmer (Unit/SW)Flash memory programmer [Programming software: Dedicated GUI-based software, the "FP6 Terminal"] [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, SuperH RISC engine, V850, 78K, R8C]
- Programmer (Unit/SW)Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU, Renesas Synergy, DA1453x, DA1459x, DA1469x, DA1470x, DA148xx, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78K0R, 78K0]
- SimulatorSimulator for RL78 Family, 78K0R and 78K0 [Support IDE: CS+] (Note: This product is included in the Compiler Package and is not available separately.)
- SimulatorSimulator for RL78 Family [Support IDE: e² studio] (Note: This product is included in the Renesas IDE "e² studio" and is not available separately.)
- ITRON OSμITRON Specification real-time OS for RL78 Family [Required IDE : CS+]
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- Search our extensive knowledgebase, designed to help customers with their FAQs.
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- IDE and Coding ToolRenesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0] (Note: CS+ is not generally promoted to U.S. and European customers.) (Note: To use Smart Configurator on CS+ for RL78/G23 and RX family MCUs, install the Smart Configurator for each MCU family separately downloading from ”Design & Support” > ”Development Tools” > ”Smart Configurator”)
- IDE and Coding ToolEclipse-based Renesas integrated development environment (IDE).
- IDE and Coding ToolIAR 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.Provider: IAR Systems
- IDE and Coding ToolRenesas IAR Embedded Workbench Device-Support-Packages include all device-specific files to be used with the Embedded Workbench IDE.
- Compiler/AssemblerC Compiler Package for RL78 Family [IDE: CS+, e² studio]View More (19)
Software & Tools (19)
- Sample CodeProvides information for deploying FFT (Fast Fourier Transform) library.
- Sample CodePresents the specifications for a Digital Signal Controller (DSC) library function for the Renesas RL78, which includes generic specifications, detailed specifications for filter algorithm kernels, and guidelines for the DSC Library API.
- Sample CodeThis application note describes how to write the program to the internal flash memory of the RL78 MCUs that supports the RL78 Protocol D by the Raspberry Pi 4 Model B+. Serial programming of the RL78 Protocol D is used for writing. The Raspberry Pi is used as a programmer; the program rewriting file is executed to send the rewrite data for the write operation.
- View More (23)
Sample Code (23)
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Development ToolUniversal third-party programmers support a wide range of Renesas programmable devices across both off-board and on-board programming modes.Provided By: Elnec s.r.o.- Development ToolProvides high-volume automated programming systems engineered for factory-scale production, enabling efficient handling of a wide range of integrated circuit (IC) devices. Optimized for microcontrollers (MCUs) and flash memory, the systems support tube, tape, and tray input/output configurations for flexible manufacturing integration. Advanced auto-teach alignment capabilities ...Provided By: DediProg Technology Co., Ltd.
- Development ToolThe AH-480 automated programming system is built around a patented rotary robotic arm equipped with dual-sided vacuum nozzles, enabling high-speed, high-precision IC pick-and-place operations. The system integrates 16 units of the latest LEAP universal programmers to deliver stable, high-throughput programming performance. Designed for ...Provided By: LEAP ELECTRONIC CO., LTD.
- Development ToolProvides universal device programming systems combining algorithms, process-control software, and socket modules for Renesas microcontroller production. Enables high-volume programming across the RA, RX, RL78, RH850, RZ, R8C, V850, M16C, H8, H8SX, H8S, SH, 78K and Synergy families using 9th- and 10th-generation universal site technology. Supports new socket ...Provided By: BPM Microsystems
- Development ToolBSMART delivers a versatile, portable interfacing solution for seamless operation on silicon devices anytime and anywhere. Its compact, pocket-sized design supports both laboratory and on-site interventions. Managed via Ethernet LAN, USB-UART, or Bluetooth® through the BSMART App, it interfaces with microprocessors and serial memories using standard ...Provided By: SMH Technologies S.r.l.View More (48)
Partner Solutions (48)
Support Communities
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RL78/F24 可以实现双分区烧写？
RL78/F24 可以将存储空间划分为两个独立的分区，一般为A区和B区，其中,A区是当前正在运行的固件分区,B区是备份固 ...
Apr 10, 2024 -
RL78/F24 AESEA Sample Project Opening Failure – Unsupported Microcontroller
I am trying to open the example project available in the AESEA sample code(r20an0664ej0130-rl78f23-f24-aesea-security) from the secure portal, but I am encountering the error mentioned below. Opening a project failed. [Direct Error Cause]The specified microcontroller is unsupported.(E0213002 I have followed all the requirements ...
May 26, 2026 -
RL78/F24 AESEA Sample Project Opening Failure – Unsupported Microcontroller
I am trying to open the example project available in the AESEA sample code(r20an0664ej0130-rl78f23-f24-aesea-security) from the secure portal, but I am encountering the error mentioned below. Opening a project failed. [Direct Error Cause]The specified microcontroller is unsupported.(E0213002 I have followed all the requirements ...
May 26, 2026
Knowledge Base
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CAN-FD and CAN example project on RL78/F24 Target Board
Last updated: 15/9/2025 Question: Is there any example project for CAN and CAN-FD on RL78/F24 Target Board ? Answer: Please find the attached project alongside with the instructions on the document.Note: The VCC power supply of TJA1042T which the CAN transceiver on the ...
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RL78/F24 Locked
Unfortunately, this parts cannot be fixed anymore. If the FLPEN bit is set to "0" once, the serial programming interface is disabled and cannot be enabled anymore. This is a security feature and is meant to be irreversible.
Feb 7, 2024 -
RL78 Family: During I2C communication, the SCL line became stuck low, causing the IICA to stop operating. Could you please advise on possible workarounds?
... then set it to 1. Suitable Products RL78/F12, RL78/F13, RL78/F14, RL78/F15, RL78/F22, RL78/F23, RL78/F24, RL78/F25, RL78/G10, RL78/G11, RL78/G12, RL78/G13, RL78/G13A, RL78/G14, RL78 ...
Apr 8, 2026
Support Communities
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Partners
FPT Software Co., Ltd.
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.
