PIC16F877A Microcontroller – 40-Pin DIP, 8-Bit MCU by Microchip
🔧 PIC16F877A Microcontroller – 40-Pin DIP, 8-Bit MCU by Microchip
The PIC16F877A is one of Microchip’s most popular and powerful 8-bit microcontrollers, widely used in embedded systems, automation, robotics, and educational projects. It features high-performance RISC architecture, ample I/O pins, timers, ADC, and built-in EEPROM for data storage.
⚙️ Technical Specifications
| Parameter | Specification |
|---|---|
| Architecture | 8-bit RISC |
| Package | DIP-40 (Dual Inline Package) |
| Operating Voltage | 2.0V – 5.5V |
| Flash Memory | 14 KB (Program memory) |
| RAM | 368 Bytes |
| EEPROM | 256 Bytes |
| CPU Speed | Up to 20 MHz (with external crystal) |
| I/O Pins | 33 GPIOs |
| Timers | 3 Timers (Timer0, Timer1, Timer2) |
| PWM Channels | 2 |
| ADC | 10-bit, 8 Channels |
| USART, SPI, I2C | Built-in communication protocols |
| Watchdog Timer | Yes |
| Interrupts | Multiple interrupt sources supported |
✅ Key Features
🧠 RISC architecture with only 35 instructions
💾 Built-in EEPROM for storing data or settings
🔌 Multiple communication options: USART, SPI, I2C
🔍 ADC for analog sensors (8-channel, 10-bit)
🧩 Wide support in MPLAB IDE, MikroC, Proteus, and PICKit
🛠️ Used in robotics, sensors, automation, and security systems
🛠️ Typical Applications
Home automation systems
Motor control and robotics
Security and alarm systems
Educational microcontroller training
Sensor interfacing and data logging
🔌 Required Tools to Program
✅ PICkit 3 or PICkit 4 Programmer
✅ MPLAB X IDE (Free from Microchip)
✅ Breadboard or PCB (DIP-40 friendly)
✅ 20 MHz crystal + 22pF capacitors (for clock)
🎥 YouTube Tutorial
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