SN32F230 series 32-bit USB micro-controller is a new series of extremely Low Power Consumption and High Performance MCU powered by ARM Cortex M0 processor with Flash ROM architecture. SN32F230 series MCU is high performance and wide operating range (1.8V~5.5V, 50 MHz maximum frequency). The device is designed with the excellent IC structure including the program memory up to 32KB Flash ROM, data memory of 4KB RAM, Nested Vectored Interrupt Controller (NVIC), three 16-bit timers, three 32-bit timers, I2C, SPI, USART, I2S interfaces, 14-channel 12-bit SAR ADC, 4*32 LCD driver, Full Speed USB 2.0 SIE, and flexible operating modes. There are several system clock sources, including internal 12MHz RC oscillator, internal 32KHz RC oscillator, external High Speed crystal, external Low Speed crystal, and PLL. Under Flash ROM platform, SN32F230 series MCU builds in in-system-programming (ISP) function extending to EEPROM emulation. Powerful functionality, high reliability and low power consumption can apply to battery level application easily.