PIC16F628A-I/P

8-bit Microcontroller with 3584 bytes (2k x 14) Programmable Flash

The PIC16F628A is an 18-pin Flash-based member of the PIC16F62x family of fully static CMOS 8-bit microcontrollers. It is upward compatible with the PIC16F628, PIC16C62xA, PIC16C5x and PIC12Cxxx devices. Features include a 4 MHz internal oscillator, 128 bytes EEPROM data memory, capture/compare/PWM, USART, 2 comparators, and programmable voltage reference.

Microchip PIC16F628A Microcontroller Features

High-Performance RISC CPU

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• Lead-free; RoHS-compliant
  
• Operating speed: 20 MHz
  
• Operating voltage: 3.0-5.5V
  
• Industrial temperature range (-40?° to +85?°C)
  
• Interrupt capability
  
• 8-level deep hardware stack
  
• Direct, Indirect and Relative Addressing modes
  
• 35 single-word instructions
  
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  • All instructions single cycle except branches
    
  
  

Special Microcontroller Features

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• Flash Memory: 3584 bytes (2048 words)
  
• Data SRAM: 224 bytes
  
• Data EEPROM: 128 bytes
  
• Internal and external oscillator options
  
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  • 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
  
• High-Endurance Flash/EEPROM cell
  
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  • 100,000 write Flash endurance
    
  • 1,000,000 write EEPROM endurance
    
  • 40-year data retention
    
  
  

Peripheral Features

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• 16 I/O pins with individual direction control
  
• High current sink/source for direct LED drive
  
• Analog comparator module
  
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  • Two analog comparators
    
  • Programmable on-chip voltage reference 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
  
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  • 16-bit Capture/Compare
    
  • 10-bit PWM
    
  
  
• Addressable USART/SCI