The R5F212L2SNFPU0 is a microcontroller sold by Renesas. It is part of the RL78 series of 8-bit microcontrollers and features on-chip Flash memory, low voltage operation, fast I/O response times and low power consumption. It has a maximum clock frequency of 16 MHz, has 16 kilobytes of Flash memory and 512 bytes of RAM. It also features a UART, A/D converter, watchdog timer and up to 32 I/O pins. It is intended for use in consumer, industrial and automotive applications and is available in various package types and sizes.