Microchip Technology
La imagen puede ser una representación.
Consulte las especificaciones para obtener detalles del producto.
PIC16F874A-I/L
Ver Detalle Hojas de datos

PIC16F874A-I/L

Product Overview

Category

The PIC16F874A-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 program memory
  • EEPROM data memory
  • Wide operating voltage range
  • Low power consumption
  • Multiple communication interfaces
  • Enhanced peripheral integration

Package

The PIC16F874A-I/L is available in a 44-pin plastic dual inline package (PDIP).

Essence

The essence of the PIC16F874A-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 PIC16F874A-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

  • Architecture: 8-bit RISC
  • Program Memory Size: 8KB
  • RAM Size: 368 bytes
  • Data EEPROM Size: 256 bytes
  • Operating Voltage Range: 2.0V to 5.5V
  • Maximum Speed: 20 MHz
  • Number of I/O Pins: 33
  • Communication Interfaces: USART, SPI, I2C
  • Timers: 3
  • Analog-to-Digital Converter (ADC): 8 channels, 10-bit resolution

Detailed Pin Configuration

The PIC16F874A-I/L has a total of 44 pins, each serving a specific purpose. The pin configuration is as follows:

  1. VDD - Power supply voltage
  2. RA0/AN0 - Analog input or digital I/O
  3. RA1/AN1 - Analog input or digital I/O
  4. RA2/AN2 - Analog input or digital I/O
  5. RA3/AN3/VREF-/CVREF - Analog input or digital I/O
  6. RA4/T0CKI/C1OUT - Timer0 clock input or digital I/O
  7. RA5/AN4/SS/HLVDIN - Analog input or digital I/O
  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 clock input
  15. RC1/T1OSI/CCP2 - Timer1 oscillator input or CCP2
  16. RC2/CCP1 - CCP1
  17. RC3/SCK/SCL - Serial clock for SPI or I2C
  18. RC4/SDI/SDA - Serial data input for SPI or I2C
  19. RC5/SDO - Serial data output for SPI
  20. RC6/TX/CK - USART transmit or synchronous clock
  21. RC7/RX/DT - USART receive or asynchronous data

... (continued)

Functional Features

The PIC16F874A-I/L offers a range of functional features that enhance its usability and performance in various applications. Some key features include:

  • Flash program memory for easy reprogramming
  • EEPROM data memory for non-volatile storage
  • Enhanced peripheral integration, reducing the need for external components
  • Multiple communication interfaces (USART, SPI, I2C) for seamless connectivity
  • Timers and PWM modules for precise timing control
  • Analog-to-Digital Converter (ADC) for analog signal processing
  • Low power consumption modes for energy-efficient operation

Advantages and Disadvantages

Advantages

  • High-performance RISC architecture ensures efficient execution of instructions
  • Wide operating voltage range allows compatibility with different power sources
  • Flash program memory enables easy firmware updates
  • Enhanced peripheral integration reduces external component count and PCB complexity
  • Multiple communication interfaces provide flexibility in system integration

Disadvantages

  • Limited program memory size compared to some other microcontrollers
  • Relatively low RAM size may restrict the complexity of applications
  • Lack of advanced features found in higher-end microcontrollers

Working Principles

The PIC16F874A-I/L operates based on the principles of a typical 8-bit RISC microcontroller. It executes instructions stored in its program memory, interacts with peripherals and I/O pins, and processes data according to the program logic. The microcontroller's clock drives the execution of instructions and synchronization of various operations.

Detailed Application Field Plans

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de PIC16F874A-I/L en soluciones técnicas

  1. What is the maximum clock frequency of PIC16F874A-I/L?
    - The maximum clock frequency of PIC16F874A-I/L is 20 MHz.

  2. How many I/O pins does PIC16F874A-I/L have?
    - PIC16F874A-I/L has a total of 33 I/O pins.

  3. What are the key features of PIC16F874A-I/L?
    - Some key features of PIC16F874A-I/L include 8-bit microcontroller, 256 bytes of EEPROM data memory, and 368 bytes of RAM.

  4. Can PIC16F874A-I/L be used for analog-to-digital conversion?
    - Yes, PIC16F874A-I/L has an integrated 10-bit ADC module for analog-to-digital conversion.

  5. What programming language can be used to program PIC16F874A-I/L?
    - PIC16F874A-I/L can be programmed using assembly language or high-level languages such as C.

  6. Is PIC16F874A-I/L suitable for battery-powered applications?
    - Yes, PIC16F874A-I/L is suitable for battery-powered applications due to its low power consumption features.

  7. Does PIC16F874A-I/L have built-in communication interfaces?
    - Yes, PIC16F874A-I/L has built-in USART, SPI, and I2C communication interfaces.

  8. Can PIC16F874A-I/L be used in industrial control systems?
    - Yes, PIC16F874A-I/L is commonly used in industrial control systems due to its reliability and versatility.

  9. What development tools are available for PIC16F874A-I/L?
    - Development tools such as MPLAB X IDE and PICkit programmers are commonly used for programming and debugging PIC16F874A-I/L.

  10. Are there any application notes or reference designs available for PIC16F874A-I/L?
    - Yes, Microchip provides a wide range of application notes and reference designs for implementing PIC16F874A-I/L in various technical solutions.