Device Core = AVR / Data Bus Width bit = 8 / Instruction Set Architecture = RISC / Family Name = ATmega / Clock Frequency Max. MHz = 20 / Program Memory Type = Flash / Program Memory Size KB = 16 / Data Memory Size B = 512 / RAM Memory Size KB = 1 / Interfaces = PWM / Interfaces = USART / Interfaces = SPI / Interfaces = TWI / ADC Channels = 8 / ADC Resolution bit = 10 / Number of Programmable I/Os = 27 / Number of Timers/Counters = 3 / Comparators = 1 / Supply Voltage Min. V = 1.8 / Supply Voltage Max. V = 5.5 / Operating Temperature Min. °C = -40 / Operating Temperature Max. °C = 85 / Package Type = TQFP / Pins = 32 / Mounting Type = SMD / MSL = Level-3 / Packaging = Tray