
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:
  - 12µA @ 32 kHz, 2.0V, typical
  - 120µA @ 1 MHz, 2.0V, typical
• Watchdog Timer Current:
  - 1µA @ 2.0V, typical
• Timer1 Oscillator Current:
  - 1.2µA @ 32 kHz, 2.0V, typical
• Dual-speed Internal Oscillator:
  - Run-time selectable between 4 MHz and
    48 kHz
  - 4µs 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
