
PIC16F685/687/689/690

20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with
nanoWatt Technology

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:
  - 1 nA @ 2.0V, typical
 Operating Current:
  - 20A @ 32 kHz, 2.0V, typical
  - <1 mA @ 4 MHz, 5.5V, typical
 Watchdog Timer Current:
  - <1A @ 2.0V, typical

Peripheral Features:

 17 I/O pins and 1 input only pin:
  - High current source/sink for direct LED drive
  - Interrupt-on-pin change
  - 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
 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 Gate Input mode
  - 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

