R5F212BASNFAU0 is a 16-bit microcontroller (MCU) by Renesas Electronics. It is part of their R5F2xx general-purpose MCU series. The device is based on their CPU core, the RXv2. It has on-chip circuit elements such as an 8-bit A/D converter, four 8-bit timers, one 16-bit timer, and other peripherals. It also comes with flash memory, up to 160KB, and a variety of package options. The MCU also has various memory protection areas, a watchdog timer, and built in safety functions. This MCU is suitable for use in a variety of applications from consumer electronics to home appliances, industrial automation, and automotive applications.