Renesas Electronics introduces the RH850/U2B MCUs, microcontrollers for integrating multiple automotive applications, enabling unified control units for E/E (electrical-electronic) architectures. They combine high performance, flexibility, noise immunity and security for cross-domain applications and are designed for hybrid drives and traction inverters, high-end zone controllers and networked gateways.
The manufacturer's cross-segment MCU portfolio now ranges from MCUs for body and chassis control systems to the new high-performance RH850/U2B MCUs. They can be combined with the R-Car S4 system-on-chip modules for scalable E/E architectures. Designed for zone and domain applications, the 28 nm MCUs contain up to eight high-performance cores with 400 MHz, four of which are in lockstep architecture. They build on the RH850/E2x series for powertrain and the RH850/C1M-Ax series for HEV/EV motor controllers. The improvements concern the accelerator IP. This enables the integration of multiple ECU functions and compliance with safety, security and real-time operation requirements.
The hardware-based support for hypervisor virtualization makes it possible to operate multiple software systems with safety levels up to ASIL D without interactions with high performance. This reduces the virtualization effort for real-time execution. The quality of service function offers latency monitoring and regulation of all bus masters so that a minimum bandwidth is always available. The new MCUs support secure OTA software updates without waiting using integrated dual-bank flash. In the event of errors, the ECU can continue to use the original code. The integrated motor control IP (EMU3S) works with timer structures such as GTM v4.1 and TSG3 to reduce CPU processing and achieve high speeds. The DFP (Data Flow Processor) accelerator IP for resolver/digital converters (RDC3X) allows the CPU to offload compute-intensive operations. The communication interfaces, including Gigabit Ethernet TSN, come with switch function.
