RoHS: yes. Component family: microcontroller. Housing: PCB soldering (SMD). Housing: TQFP44. Configuration: surface-mounted component (SMD). Number of terminals: 44. MCU circuit family: ATMEL AVR. Maximum CPU clock frequency: 20 MHz. Number of I/O: 32. Program storage memory: 16 KByte. Program storage memory type: 'FLASH' memory. Storage memory capacity: 1 KByte/512 Byte. Storage memory type: SRAM/EEPROM. Digital peripheral circuits: WDT, RTC, PWM, QTOUCH. Digital interface circuits: UART, SPI, I2C. Analog peripheral circuits: ADC, Comparator. MCU type: 8-bit microcontroller. Operating temperature range min (°C): -40°C. Operating temperature range max (°C): +85°C. Minimum supply voltage (V): +1.8V. Maximum supply voltage (V): +5.5V