Description: CPU kernel: ARM Cortex-M3 CPU Maximum primary frequency: 96 MHz Operating voltage range: 2V~3.6V Internal oscillator: with external clock frequency range: 4 MHz ~ 16 MHz Program FLASH capacity: 512KB RAM Total capacity: 128KB GPIO Port number: 51 ADC (cells / channel number / digits): 3@x16ch / 12bit DAC (cells / channels