PIC16F874AT-I/L

Product Overview

Category

The PIC16F874AT-I/L belongs to the category of microcontrollers.

Use

This microcontroller is widely used in various electronic applications that require embedded control and processing capabilities.

Characteristics

• High-performance 8-bit RISC architecture
• Flash-based program memory
• Wide operating voltage range
• Low power consumption
• Enhanced peripheral integration
• Flexible I/O options

Package

The PIC16F874AT-I/L is available in a 44-pin plastic QFP package.

Essence

The essence of the PIC16F874AT-I/L lies in its ability to provide efficient and reliable control and processing capabilities for a wide range of electronic devices and systems.

Packaging/Quantity

The PIC16F874AT-I/L is typically packaged in reels, with each reel containing a specific quantity of microcontrollers. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• CPU Speed: 20 MHz
• Program Memory Size: 8 KB
• RAM Size: 368 bytes
• Number of I/O Pins: 33
• ADC Channels: 5
• Timers: 3
• Communication Interfaces: USART, SPI, I2C

Detailed Pin Configuration

The PIC16F874AT-I/L features a total of 44 pins, each serving a specific purpose. Here is a detailed pin configuration:

1. VDD - Power supply voltage
2. RA0/AN0 - Analog input or digital I/O pin
3. RA1/AN1 - Analog input or digital I/O pin
4. RA2/AN2 - Analog input or digital I/O pin
5. RA3/AN3/VREF-/CVREF - Analog input or digital I/O pin
6. RA4/T0CKI/C1OUT - Timer0 clock input or digital I/O pin
7. RA5/AN4/SS - Analog input or digital I/O pin
8. RE0/RD/AN5 - Port E bit 0 or RD or analog input
9. RE1/WR/AN6 - Port E bit 1 or WR or analog input
10. RE2/CS/AN7 - Port E bit 2 or CS or analog input
11. VSS - Ground
12. OSC1/CLKI - Oscillator crystal input
13. OSC2/CLKO - Oscillator crystal output
14. RC0/T1OSO/T1CKI - Timer1 oscillator output or digital I/O pin
15. RC1/T1OSI/CCP2 - Timer1 oscillator input or digital I/O pin
16. RC2/CCP1 - Capture/Compare/PWM pin
17. RC3/SCK/SCL - Serial clock input or digital I/O pin
18. RC4/SDI/SDA - Serial data input or digital I/O pin
19. RC5/SDO - Serial data output pin
20. RC6/TX/CK - USART transmit or digital I/O pin
21. RC7/RX/DT - USART receive or digital I/O pin 22-33. RB0-RB7 - Port B bits 0-7 34-41. RD0-RD7 - Port D bits 0-7 42-43. VDD and VSS - Power supply and ground for Port D
22. MCLR/VPP - Master Clear input or programming voltage

Functional Features

The PIC16F874AT-I/L offers a range of functional features that enhance its performance and versatility:

• High-speed processing capabilities
• Flash memory for easy program updates
• Integrated peripherals for enhanced functionality
• Multiple communication interfaces for seamless connectivity
• Analog-to-digital conversion for sensor interfacing
• Timers and counters for precise timing operations
• PWM output for controlling motor speed or LED brightness

Advantages and Disadvantages

Advantages

• High-performance RISC architecture ensures efficient execution of instructions
• Flash-based program memory allows for easy updates and flexibility
• Low power consumption extends battery life in portable applications
• Enhanced peripheral integration reduces the need for external components
• Wide operating voltage range enables compatibility with various power sources

Disadvantages

• Limited program memory size may restrict the complexity of applications
• Relatively small RAM size may limit the amount of data that can be processed simultaneously
• Lack of advanced features found in more powerful microcontrollers

Working Principles

The PIC16F874AT-I/L operates based on the principles of a typical 8-bit microcontroller. It executes instructions stored in its program memory, interacts with peripherals and I/O pins, and performs calculations and data processing tasks. The microcontroller's working principles are governed by its internal architecture and the specific instructions provided by the user.

Detailed