PIC16F874-20I/PQ

Product Overview

Category

The PIC16F874-20I/PQ belongs to the category of microcontrollers.

Use

This microcontroller is commonly 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

Package

The PIC16F874-20I/PQ is available in a PQFP package, which stands for Plastic Quad Flat Pack. This package offers a compact size and easy integration onto circuit boards.

Essence

The essence of the PIC16F874-20I/PQ lies in its ability to provide efficient and reliable control and processing functions within electronic systems.

Packaging/Quantity

This microcontroller is typically packaged in reels or tubes, with a quantity of 1000 units per package.

Specifications

• Operating Voltage: 2.0V to 5.5V
• Maximum CPU Speed: 20 MHz
• Program Memory Size: 8 KB
• RAM Size: 368 bytes
• Number of I/O Pins: 33
• Analog-to-Digital Converter (ADC): 8 channels, 10-bit resolution
• Timers: 3 timers/counters
• Communication Interfaces: USART, SPI, I2C

Detailed Pin Configuration

The PIC16F874-20I/PQ has a total of 44 pins, each serving a specific purpose. The pin configuration is as follows:

1. VDD - Power supply voltage
2. RA0 - General-purpose I/O pin
3. RA1 - General-purpose I/O pin
4. RA2 - General-purpose I/O pin
5. RA3 - General-purpose I/O pin
6. RA4 - General-purpose I/O pin
7. RA5 - General-purpose I/O pin
8. MCLR/VPP - Master Clear input or programming voltage supply
9. VSS - Ground
10. RB0/INT - General-purpose I/O pin or external interrupt input
11. RB1 - General-purpose I/O pin
12. RB2 - General-purpose I/O pin
13. RB3 - General-purpose I/O pin
14. RB4 - General-purpose I/O pin
15. RB5 - General-purpose I/O pin
16. RB6/PGC - General-purpose I/O pin or programming clock
17. RB7/PGD - General-purpose I/O pin or programming data
18. VDD - Power supply voltage
19. OSC1/CLKIN - Oscillator input
20. OSC2/CLKOUT - Oscillator output
21. RC0 - General-purpose I/O pin
22. RC1 - General-purpose I/O pin
23. RC2 - General-purpose I/O pin
24. RC3 - General-purpose I/O pin
25. RC4 - General-purpose I/O pin
26. RC5 - General-purpose I/O pin
27. RC6/TX/CK - General-purpose I/O pin or USART transmit or synchronous serial clock
28. RC7/RX/DT - General-purpose I/O pin or USART receive or synchronous serial data

Functional Features

The PIC16F874-20I/PQ offers several functional features that enhance its performance and versatility:

1. Flash-based Program Memory: Allows for easy reprogramming of the microcontroller's code.
2. Enhanced Peripheral Integration: Integrated peripherals such as ADC, timers, and communication interfaces simplify system design and reduce component count.
3. Low Power Consumption: The microcontroller operates efficiently, making it suitable for battery-powered applications.
4. High-Speed Operation: With a maximum CPU speed of 20 MHz, the PIC16F874-20I/PQ can handle demanding tasks.
5. Wide Operating Voltage Range: The microcontroller can operate within a wide voltage range, providing flexibility in various applications.

Advantages and Disadvantages

Advantages

• Efficient and reliable control and processing capabilities
• Flash-based program memory allows for easy reprogramming
• Integrated peripherals simplify system design
• Low power consumption extends battery life
• Wide operating voltage range provides flexibility

Disadvantages

• Limited program memory size (8 KB)
• Limited RAM size (368 bytes)
• Relatively small number of I/O pins compared to some other microcontrollers

Working Principles

The PIC16F874-20I/PQ operates based on an 8-bit RISC architecture. It executes instructions stored in its flash-based program memory. The microcontroller interacts with external devices through its I/O pins and utilizes its integrated peripherals to perform various tasks such as analog-to-digital conversion, timing, and communication.

Detailed Application Field Plans

The PIC16F874-20I/PQ finds applications in a wide range