PIC16F946-I/PT

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1. High-Performance RISC CPU

    1. Only 35 instructions to learn:

        - All single-cycle instructions except branches

    2. Operating speed:

        - DC – 20 MHz oscillator/clock input

        - DC – 200 ns instruction cycle

    3. Program Memory Read (PMR) capability

    4. Interrupt capability

    5. 8-level deep hardware stack

    6. Direct, Indirect and Relative Addressing modes

2. Special Microcontroller Features

    1. 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

    2. Software selectable 31 kHz internal oscillator

    3. Power-Saving Sleep mode

    4. Wide operating voltage range (2.0V-5.5V)

    5. Industrial and Extended temperature range

    6. Power-on Reset (POR)

    7. Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)

    8. Brown-out Reset (BOR) with software control option

    9. Enhanced Low-Current Watchdog Timer (WDT) with on-chip oscillator (software selectable nominal 268 seconds with full prescaler) with software enable

  10. Multiplexed Master Clear with pull-up/input pin

  11. Programmable code protection

  12. High-Endurance Flash/EEPROM cell:

        - 100,000 write Flash endurance

        - 1,000,000 write EEPROM endurance

        - Flash/Data EEPROM retention: > 40 years

3. Low-Power Features

    1. Standby Current:

        - <100 nA @ 2.0V, typical

    2. Operating Current:

        - 11 μA @ 32 kHz, 2.0V, typical

        - 220 μA @ 4 MHz, 2.0V, typical

    3. Watchdog Timer Current:

        - 1 μA @ 2.0V, typical

4. Peripheral Features

    1. Liquid Crystal Display module:

        - Up to 60/96/168 pixel drive capability on 28/40/64-pin devices, respectively

        - Four commons

    2. 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

    3. In-Circuit Serial Programming™ (ICSP™) via two pins

    4. Analog comparator module with:

        - Two analog comparators

        - Programmable on-chip voltage reference (CVREF) module (% of VDD)

        - Comparator inputs and outputs externally accessible

    5. A/D Converter:

        - 10-bit resolution and up to 8 channels

    6. Timer0: 8-bit timer/counter with 8-bit programmable prescaler

    7. 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

    8. Timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler

    9. Addressable Universal Synchronous Asynchronous Receiver Transmitter (AUSART)

  10. 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

  11. Synchronous Serial Port (SSP) with I2C™

5. Pin configuration