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
Software & Tools
Software title
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Software type
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Company
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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]
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Programmer (Unit/SW) | Renesas |
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]
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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]
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Emulator | 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
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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
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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.
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IDE and Coding Tool | Renesas |
RL78 Motor Control Peripheral Blockset Provides simulation blocks that reproduce hardware for motor/inverter control with high accuracy.
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Model-Based Development | Renesas |
8 items
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Sample Code
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 kit is for motor control evaluation with RL78/F24 (48-pin) product.
This kit includes a permanent magnetic synchronous motor (TG-55N-KA 12V; Tsukasa Electric Co., Ltd), allowing users to easily start evaluating the motor after purchase.
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...
RL78/F24 Security Renesas Solution Starter Kit
This kit is for evaluating security with the RL78/F24.
This kit implements a series of security functions such as encryption/decryption, CMAC generation/verification, random number generation, secure boot, and key registration, and can also perform complex and difficult calculations instantly...
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.

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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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