SN8F2270B is a 8-bit microcontroller (MCU) utilized CMOS technology and featured with low power consumption and high performance by its unique electronic structure. It is designed with the excellent IC structure including the program memory up to 5K-word Flash ROM, data memory of 192-byte RAM, 8-level stack buffers, two timers (T0 and TC0), a watchdog timer, a SIO transceiver, and a low-speed USB SIE.