PIC16F946中文资料微芯科技数据手册PDF规格书

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™