The UPD78F0588GB-GAF-AX is a Renesas microcontroller part produced by the company, Renesas. This microcontroller is part of the 78K0 family of microcontrollers, and supports 8-bit operation. It has 64k of memory and is capable of running up to 24MHz. The chip includes an RTC, GPIO ports, and two UARTs for wireless communications. Additionally, it has a Watchdog Timer and Sleep Mode functionality, making it well suited for use in low power applications.