RH850 32-Bit Automotive MCUs Renesas Electronics RH850 32-Bit Automotive MCUs offer high-performance balanced with a very low power consumption over a wide, scalable range of products. The RH850 MCUs provide rich functional safety and features embedded security needed for advanced automotive applications. The family offers a range of CPU core structures (single, multiple, lock-step, and combination) to support high-performance, high-reliability requirements.