With the expansion of E/E architecture to include zone and domain control applications, control mechanisms are evolving to accommodate body control for automotive systems such as lights, windows, and mirrors; motor control for engine pumps and fans; and the control of multiple sensors. In the future, secure, high-speed connectivity with zone and domain controllers will be critical for state-of-the-art electronic control units (ECUs). Renesas' new generation of RL78/F24 and RL78/F23 responds to the evolving technological demands for actuator and sensor control with enhanced safety, rich connectivity, and functional safety capabilities. The new devices are compatible with the high-speed CAN FD communication protocol (RL78/F24) and EVITA-Light safety, and are optimized for systems with ASIL-B levels according to the ISO 26262 functional safety standard.
 
The future of automotive system design is moving towards a vehicle-centric, zone-oriented E/E architecture, and this shift is driving increased demand for more advanced features and improved performance in actuator controller applications. The new RL78/F24 and RL78/F23 MCUs offer operating frequencies up to 70% faster than the previous generation, which can double the performance in brushless DC (BLDC) motor control applications. Renesas has also enhanced the hardware throttle and timer functions for motor control and added a 12-bit A/D converter, providing customers with the improved functionality and performance they demand.
 
Key features of the RL78/F24 and RL78/F23 MCUs
: - 40 MHz operating frequency
- Supports various connectivity interfaces, including CAN FD (RL78/F24), LIN, SPI, and I2C
- EVITA-Light compliant security functionality (supports AES-128/192/256 encryption algorithms)
- Backward compatible with the RL78/F14 and RL78/F13 MCUs with the same energy efficiency
- On-chip flash memory capacity of 128 KB or 256 KB
- Package range from the compact 5 × 5 mm 32-pin QFN to the 100-pin QFP
- Supports high temperatures up to 150 °C
- RL78/F24 target board and 12 V motor control system evaluation kit for the RL78/F24 to be released soon (under development)