PIC16F887数据手册 用于PIC16F887的学习
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2022-03-17
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2006-2015 Microchip Technology Inc. DS40001291H-page 1
PIC16F882/883/884/886/887
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%
- Software selectable frequency range of
8 MHz to 31 kHz
- Software tunable
- Two-Speed Start-up mode
- Crystal fail detect for critical applications
- Clock mode switching during operation for
power savings
• 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
• Program Memory Read/Write during run time
• In-Circuit Debugger (on board)
Low-Power Features
• Standby Current:
- 50 nA @ 2.0V, typical
• Operating Current:
-11A @ 32 kHz, 2.0V, typical
-220A @ 4 MHz, 2.0V, typical
• Watchdog Timer Current:
-1A @ 2.0V, typical
Peripheral Features
• 24/35 I/O Pins with Individual Direction Control:
- High current source/sink for direct LED drive
- Interrupt-on-Change pin
- Individually programmable weak pull-ups
- Ultra Low-Power Wake-up (ULPWU)
• Analog Comparator Module with:
- Two analog comparators
- Programmable on-chip voltage reference
(CV
REF) module (% of VDD)
- Fixed Voltage Reference (0.6V)
- Comparator inputs and outputs externally
accessible
- SR Latch mode
- External Timer1 Gate (count enable)
• A/D Converter:
- 10-bit resolution and 11/14 channels
• Timer0: 8-bit Timer/Counter with 8-bit
Programmable Prescaler
• Enhanced Timer1:
- 16-bit timer/counter with prescaler
- External Gate Input mode
- Dedicated low-power 32 kHz oscillator
• Timer2: 8-bit Timer/Counter with 8-bit Period
Register, Prescaler and Postscaler
• Enhanced Capture, Compare, PWM+ Module:
- 16-bit Capture, max. resolution 12.5 ns
- Compare, max. resolution 200 ns
- 10-bit PWM with 1, 2 or 4 output channels,
programmable “dead time”, max. frequency
20 kHz
- PWM output steering control
• Capture, Compare, PWM Module:
- 16-bit Capture, max. resolution 12.5 ns
- 16-bit Compare, max. resolution 200 ns
- 10-bit PWM, max. frequency 20 kHz
• Enhanced USART Module:
- Supports RS-485, RS-232, and LIN 2.0
- Auto-Baud Detect
- Auto-Wake-Up on Start bit
• In-Circuit Serial Programming
TM
(ICSP
TM
) via Two
Pins
• Master Synchronous Serial Port (MSSP) Module
supporting 3-wire SPI (all 4 modes) and I
2
C™
Master and Slave Modes with I
2
C Address Mask
28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers
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