PIC16F687T-E/SS
数据手册.pdf20引脚基于闪存的8位CMOS微控制器采用纳瓦技术 20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology
DEVICE OVERVIEW
The PIC16F631/677/685/687/689/690 devices are covered by this data sheet. They are available in 20-pin PDIP, SOIC, TSSOP and QFN packages.
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 32 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 PWRTE 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/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
• Enhanced USART Module:
- Supports RS-485, RS-232 and LIN 2.0
- Auto-Baud Detect
- Auto-wake-up on Start bit
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
Peripheral Features:
• 17 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
- Ultra Low-Power Wake-up ULPWU
• Analog Comparator Module with:
- Two analog comparators
- Programmable on-chip voltage reference CVREF module % of VDD
- Comparator inputs and outputs externally accessible
- SR Latch mode
- Timer 1 Gate Sync Latch
- Fixed 0.6V VREF
• A/D Converter:
- 10-bit resolution and 12 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 in LP mode as Timer1 oscillator if INTOSC mode selected
• 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
• Synchronous Serial Port SSP:
- SPI mode Master and Slave
• I2C™ Master/Slave modes:
- I2C™ address mask
• In-Circuit Serial ProgrammingTM ICSPTM via Two Pins
