PIC16F873A Microcontroller

PIC16F873A Microcontroller 

The PIC16F873A is an 8-bit microcontroller from Microchip Technology, part of the PIC16F family. It is designed for low-power, cost-effective, and reliable embedded applications.

It uses Harvard architecture with a RISC instruction set, allowing most instructions to execute in a single clock cycle. The microcontroller operates up to 20 MHz and includes Flash program memory, which can be erased and reprogrammed for prototyping and development. It is commonly available in DIP and SMD packages, making it suitable for both through-hole and surface-mount designs.

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Features

• 8-bit PIC CPU (RISC architecture)
• Operating voltage: 2.0 V – 5.5 V
• Maximum clock frequency: 20 MHz
• Program memory: 4 KB Flash
• RAM: 192 bytes
• EEPROM: 128 bytes
• I/O pins: Up to 22 programmable digital I/O pins
• Timers:
• Timer0 (8-bit)
• Timer1 (16-bit)
• Timer2 (8-bit)
• Analog features:
• 10-bit ADC with 6 input channels
• 2 analog comparators
• Communication interfaces:
• USART
• SPI
• I²C (MSSP module)
• PWM / CCP module
• Interrupt system
• Watchdog Timer (WDT)
• In-Circuit Serial Programming (ICSP)
• Low-power sleep mode

Applications

• Embedded control systems
• Industrial automation and monitoring
• Robotics and motor control
• Home automation projects
• Sensor-based and data acquisition systems
• Consumer electronics
• Educational and student projects