MCU, 8BIT, AVR, MOD'L; Controller Family/Series:Atmega; Core Size:8bit; No. of I/O's:23; Supply Voltage Range:1.8V to 5.5V; Digital IC Case Style:QFN; No. of Pins:28; Program Memory Size:32KB; EEPROM Memory Size:1KB; RAM Memory Size:2KB; CPU Speed:20MHz; Oscillator Type:Internal; No. of Timers:2; Peripherals:ADC, Comparator, RTC, Timer, PWM; Embedded Interface Type:SPI; No. of PWM Channels:6; Operating Temperature Range:-40°C to +85°C; SVHC:No SVHC (18-Jun-2012)