The HAT1055RJ-EL-E is a microcontroller manufactured by Renesas. It is an 8-bit microcontroller based on the H8/300H architecture, and it is one of the core components of the H8 Family of processors. It has a maximum operating frequency of 25 MHz and includes 8k words of ROM and 192 bytes of user RAM. It also includes 8-bit 8-channel A/D converter, 8-bit 2-channel timer, 8-bit 2-channel counter. It is suitable for embedded applications, and supports a variety of interfaces, including UART, I2C and clock synchronous serial. It is RoHS compliant and UL listed.