Description: CPU kernel: ARM Cortex-M0 CPU Maximum primary frequency: 32 MHz Operating Voltage Range: 1.8V~5.5V Internal Oscator: External Clock frequency range: 4 MHz ~ 32 MHz Program FLASH Capacity: 32KB RAM Total capacity: 4KB EEPROM / Data FLASH Capacity: -GPIO Port number: 16 ADC (number of cells / number of channels / number of digits): 1@