High-Performance RISC CPU:
• Only 35 instructions to learn:
   - All single-cycle instructions except branches
• Operating speed:
   - DC – 20 MHz oscillator/clock input
   - DC – 200 ns instruction cycle
• Program Memory Read (PMR) capability
• Interrupt capability
• 8-level deep hardware stack
• Direct, Indirect and Relative Addressing modes

Special Microcontroller Features:
• Precision Internal Oscillator:
   - Factory calibrated to ±1%, typical
   - Software selectable frequency range of 8 MHz to 125 kHz
   - Software tunable
   - Two-Speed Start-up mode
   - External Oscillator fail detect for critical applications
   - Clock mode switching during operation for power savings
• Software selectable 31 kHz internal oscillator
• Power-Saving Sleep mode
• Wide operating voltage range (2.0V-5.5V)
• Industrial and Extended temperature range
• Power-on Reset (POR)
• Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
• Brown-out Reset (BOR) with software control option
• Enhanced Low-Current Watchdog Timer (WDT) with on-chip oscillator (software selectable nominal 268 seconds with full prescaler) with software enable
• Multiplexed Master Clear with pull-up/input pin
• Programmable code protection
• High-Endurance Flash/EEPROM cell:
   - 100,000 write Flash endurance
   - 1,000,000 write EEPROM endurance
   - Flash/Data EEPROM retention: > 40 years

Low-Power Features:
• Standby Current:
   - <100 nA @ 2.0V, typical
• Operating Current:
   - 11 μA @ 32 kHz, 2.0V, typical
   - 220 μA @ 4 MHz, 2.0V, typical
• Watchdog Timer Current:
   - 1 μA @ 2.0V, typical

Peripheral Features:
• Liquid Crystal Display module:
   - Up to 60/96/168 pixel drive capability on 28/40/64-pin devices, respectively
   - Four commons
• Up to 24/35/53 I/O pins and 1 input-only pin:
   - High-current source/sink for direct LED drive
   - Interrupt-on-change pin
   - Individually programmable weak pull-ups
• In-Circuit Serial Programming™ (ICSP™) via two pins
• Analog comparator module with:
   - Two analog comparators
   - Programmable on-chip voltage reference (CVREF) module (% of VDD)
   - Comparator inputs and outputs externally accessible
• A/D Converter:
- 10-bit resolution and up to 8 channels
• Timer0: 8-bit timer/counter with 8-bit programmable prescaler
• Enhanced Timer1:
   - 16-bit timer/counter with prescaler
   - External Timer1 Gate (count enable)
   - Option to use OSC1 and OSC2 as Timer1 oscillator if INTOSCIO or LP mode is selected
• Timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler
• Addressable Universal Synchronous Asynchronous Receiver Transmitter (AUSART)
• Up to 2 Capture, Compare, PWM modules:
   - 16-bit Capture, max. resolution 12.5 ns
   - 16-bit Compare, max. resolution 200 ns
   - 10-bit PWM, max. frequency 20 kHz
• Synchronous Serial Port (SSP) with I2C™