Overview
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. 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 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.
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
- Extensive ecosystem supporting the latest standards concerning tool, hardware, and software areas
Comparison
Applications
Design & Development
Software & Tools
Sample Code
Boards & Kits
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.
Support
Support Communities
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
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RL78/F24 Timer configuration
Hello, I am trying to understand the bsps for your processor's Interval Timer. I thought I understood the structure for TAU0 in general, until TAU1 was generated. I decided to create 0th ch and 2nd ch for TAU1 (I am analyzing it). In the 0th channel, it was setting ...
Jul 26, 2025 -
RL78/F24 Enabling 2 interval timers causes repeated resets
Hello Renesas Community, I am using a Renesas RL78/F24 (R7F124FGJ4xFB) and I want to use 2 interval timers. When only 1 timer (TAU0, Channel 1) is enabled for interval-timer operation with the following settings, it works properly. INTTM01 interrupt gets called and my ISR works properly. However ...
Jul 8, 2025 -
RL78/F24 Bootswap-Function issue: Application does not start up
Hi @ all, I encounterd an issue when using the Bootswap-Function on the RL78/F24 controller: I've developed a bootloader that resides in Bootcluster 0 and this should flash an application via CAN to Bootcluster 1.To do this I've used the Flash Driver RL78 Type 02 ...
Jun 19, 2024
FAQs
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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/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 -
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
Videos & Training
Explore the benefits that RL78/F2x MCUs bring to smart actuators and sensors.
News & Blog Posts
Blog Post
Nov 27, 2023
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Blog Post
Sep 30, 2022
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Blog Post
Jul 4, 2022
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