1. Multiple PWM channels for DC motor control, hobby servo control, and audio output applications
2. Hardware UART (up to 115Kbaud) for fast serial communications (RS232)
3. Hardware timer system (measure pulse widths & generate multiple waveforms simultaneously): ideal for interfacing sonar/IR distance-measuring sensors, R/C servo motors
4. Built-in analog-to-digital converters (8 channels, with 10-bit resolution and 7us sample time for interfacing multiple sensors: temperature, humidity, pressure, light, etc.)
5. Built-in real-time interrupt (easy to implement multi-tasking Operating System kernel)
6. Advanced Complex Instruction Set (CISC) 16-bit CPU
7. Serial Peripheral Interface*(SPI) for easy interface to LCDs, SD cards, MP3 chips, DACs, clock/calendar chips, serial EEPROM, etc.
8. 32K+ program memory (for fast "execute-in-place" program execution)
9. 2K+ user RAM (for variables and data)
10. Programmable in Assembler, BASIC, and C
* SPI is not present on 24-pin versions.