Features
• High performance, low power Atmel®AVR® 8-bit Microcontroller
• Advanced RISC architecture
   – 131 powerful instructions - most single clock cycle execution
   – 32 × 8 general purpose working registers
   – Fully static operation
   – Up to 1 MIPS throughput per MHz
   – On-chip 2-cycle multiplier
• Data and non-volatile program memory
   – 8/16Kbytes of in-system programmable program memory flash
      • Endurance: 10,000 write/erase cycles
      • Lock bits protection
      • Optional 2/4Kbytes boot code section with independent lock bits
      • In-system programming by on-chip boot program
      • True read-while-write operation
   – 512 Bytes of in-system programmable EEPROM
      • Four bytes page size
   – 256/1024 Bytes Internal SRAM
• On-chip debug support (debugWIRE)
• Peripheral features
   – One 12-bit high speed PSC (Power Stage Controllers with extended PSC2 features)
      • Non overlapping inverted PWM output pins with flexible dead-time
      • Variable PWM duty cycle and frequency
      • Synchronous update of all PWM registers
      • Enhanced resolution mode (16 bits)
      • Additional register for ADC synchronization
      • Input capture
      • Four output pins and output matrix
   – One 12-bit high speed PSC (Power Stage Controller)
      • Auto-stop function for event driven PFC implementation
      • Non overlapping inverted PWM output pins with flexible dead-time
      • Variable PWM duty cycle and frequency
      • Synchronous update of all PWM registers
      • Enhanced resolution mode (16 bits)
      • Input capture
   – One 16-bit simple general purpose timer/counter
   – 10-bit ADC
      • Up to 11 single ended channels and one fully differential ADC channel pair
      • Programmable gain (5×, 10×, 20×, 40× on differential channel)
      • Internal reference voltage
   – One 10-bit DAC
   – Three analog comparators with
      • Resistor-array to adjust comparison voltage
      • DAC to adjust comparison voltage
   – One SPI
   – Three external interrupts
   – Programmable watchdog timer with separate on-chip oscillator
• Special microcontroller features
   – Low power idle, noise reduction, and power down modes
   – Power-on reset and programmable brown-out detection
   – Flag array in bit-programmable I/O space (three bytes)
   – In-system programmable via SPI port
   – Internal low power calibrated RC oscillator (8MHz or 1MHz, low jitter)
   – On chip PLL for fast PWM (32MHz, 48MHz, 64MHz) and CPU (12MHz, 16MHz); PLL source RC & XTAL
   – Dynamic clock switch
   – Temperature sensor
• Operating voltage: 2.7V - 5.5V
• Operating temperature:
   – -40°C to +105°C or -40°C to +125°C
• Operating speed
   – 5V: 16MHz core, 64MHz PLL
   – 3.3V: 12MHz core, 48MHz PLL