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 = 32 / Data Memory Size KB = 1 / RAM Memory Size KB = 2 / Interfaces = I²C / Interfaces = SPI / Interfaces = UART / ADC Channels = 6 / ADC Resolution Bit = 10 / DAC Resolution Bit = 10 / Number of Programmable I/Os = 23 / 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 = PDIP / Pins = 28 / Mounting Type = Through Hole / Packaging = Tube / Length mm = 34.8 / Width mm = 7.49 / Height mm = 4.07