The PIC16F628A microcontroller is an 18-pin microcontroller with 8-bit PIC Architecture. The controller has an in-built internal oscillator with 4MHz frequency and 128 bytes of EEPROM data. It has enhanced core features, an eight-level deep stack, and multiple internal and external interrupt sources. The separate instruction and data buses of the Harvard architecture allow a 14-bit wide instruction word with the separate 8-bit wide data. The two-stage instruction pipeline allows all instructions to execute in a single cycle, except for program branches (which require two cycles). A total of 35 instructions (reduced instruction set) are available, complemented by a large register set. 

It has an operating voltage from 2V to 5.5V hence suitable for low voltage applications. It has two 8-bit timers and one 16-bit timer and 2 comparators. It also has a CCP module enabling compare, capture and PWM operations. It supports UART communication while I2C and SPI are not supported.

PIC16F628A microcontrollers typically achieve a 2:1 code compression and a 4:1 speed improvement over other 8-bit microcontrollers in their class. PIC16F628A devices have integrated features to reduce external components, thus reducing system cost, enhancing system reliability and reducing power consumption. 

PIC16F628A pinout:

PIC16F628A features, Specification:

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/S 

Specification: 

• Program Memory Type                                 Flash
• Program Memory Size (KB)                         3.5
• CPU Speed (MIPS/DMIPS)                            5
• SRAM (B).                                                      224
• Temperature Range (°C)                            -40 to 125
• Operating Voltage Range (V)                       2V to 5.5V
• Pin Count                                                      18
• Timers                                                           2 x 8-bit, 1×16-bit
• Data EEPROM/HEF (bytes)                         128
• Digital Communication Peripherals              1-UART
• Capture/Compare/PWM Peripherals              1 Input Capture, 1 CCP

PIC16F628A Applications:

• Small Embedded hardware
• PC to MCU communication
• Data processing
• Small Industrial Embedded devices

PIC16F628A Dimension and footprint:

Example Projects on PIC16F628A:

PIC16F628A Projects

Additional Resources:

PIC16F628A Datasheet

Package Contains

1x PIC16F628A