
PIC16F627A/628A/648A

18-pin Flash-Based, 8-Bit CMOS Microcontrollers
with nanoWatt Technology

High-Performance RISC CPU:

 Operating speeds from DC  20 MHz
 Interrupt capability
 8-level deep hardware stack
 Direct, Indirect and Relative Addressing modes
 35 single-word instructions:
  - All instructions single cycle except branches

Special Microcontroller Features:

 Internal and external oscillator options:
  - Precision internal 4 MHz oscillator factory
    calibrated to 1%
  - Low-power internal 48 kHz oscillator
  - External Oscillator support for crystals and
    resonators
 Power-saving Sleep mode
 Programmable weak pull-ups on PORTB
 Multiplexed Master Clear/Input-pin
 Watchdog Timer with independent oscillator for
  reliable operation
 Low-voltage programming
 In-Circuit Serial Programming (via two pins)
 Programmable code protection
 Brown-out Reset
 Power-on Reset
 Power-up Timer and Oscillator Start-up Timer
 Wide operating voltage range (2.0-5.5V)
 Industrial and extended temperature range
 High-Endurance Flash/EEPROM cell:
  - 100,000 write Flash endurance
  - 1,000,000 write EEPROM endurance
  - 40 year data retention

Low-Power Features:

 Standby Current:
  - 100 nA @ 2.0V, typical
 Operating Current:
  - 12A @ 32 kHz, 2.0V, typical
  - 120A @ 1 MHz, 2.0V, typical
 Watchdog Timer Current:
  - 1A @ 2.0V, typical
 Timer1 Oscillator Current:
  - 1.2A @ 32 kHz, 2.0V, typical
 Dual-speed Internal Oscillator:
  - Run-time selectable between 4 MHz and
    48 kHz
  - 4s wake-up from Sleep, 3.0V, typical

Peripheral Features:

 16 I/O pins with individual direction control
 High current sink/source for direct LED drive
 Analog comparator module with:
  - Two analog comparators
  - Programmable on-chip voltage reference
    (VREF) module
  - Selectable internal or external reference
  - Comparator outputs are externally accessible
 Timer0: 8-bit timer/counter with 8-bit
  programmable prescaler
 Timer1: 16-bit timer/counter with external crystal/
  clock capability
 Timer2: 8-bit timer/counter with 8-bit period
  register, prescaler and postscaler
 Capture, Compare, PWM module:
  - 16-bit Capture/Compare
  - 10-bit PWM
 Addressable Universal Synchronous/Asynchronous
  Receiver/Transmitter USART/SCI
