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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

? 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

- Crystal 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:

- 50 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