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PIC16F84A-20/P
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PIC16F84A-20/P

Product Overview

Category

The PIC16F84A-20/P belongs to the category of microcontrollers.

Use

It is commonly used in various electronic applications that require control and processing capabilities.

Characteristics

  • Low power consumption
  • High-performance RISC CPU
  • Wide operating voltage range
  • Flash program memory
  • EEPROM data memory
  • I/O ports with programmable pull-up resistors
  • Timer/counter modules
  • Serial communication interface

Package

The PIC16F84A-20/P is available in a 18-pin DIP (Dual Inline Package) format.

Essence

This microcontroller is designed to provide efficient control and processing capabilities in a compact package.

Packaging/Quantity

The PIC16F84A-20/P is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

  • Operating Voltage: 2.0V to 5.5V
  • Maximum Clock Frequency: 20 MHz
  • Flash Program Memory: 1K words
  • Data Memory (RAM): 68 bytes
  • EEPROM Data Memory: 64 bytes
  • I/O Pins: 13
  • Timers: 1 x 8-bit, 1 x 16-bit
  • Communication Interfaces: USART, SPI, I2C

Detailed Pin Configuration

The PIC16F84A-20/P has a total of 18 pins, each serving a specific purpose. The pin configuration is as follows:

  1. VDD - Power supply voltage
  2. RA2/AN2/CVREF/VREF - Analog input channel 2 / Comparator reference voltage / Voltage reference
  3. RA3/AN3/VREF-/CVREF-/VREF- - Analog input channel 3 / Negative comparator reference voltage / Negative voltage reference
  4. RA4/T0CKI/C1OUT/RCV - Timer0 clock input / Comparator output / USART receive pin
  5. MCLR/VPP - Master Clear input / Programming voltage supply
  6. RA0/AN0 - Analog input channel 0
  7. RA1/AN1 - Analog input channel 1
  8. OSC1/CLKIN - Oscillator input
  9. OSC2/CLKOUT - Oscillator output
  10. RC0/T1OSO/T1CKI/CCP1 - Timer1 oscillator output / Timer1 clock input / CCP1 module pin
  11. RC1/T1OSI/CCP2 - Timer1 oscillator input / CCP2 module pin
  12. RC2/CCP1 - CCP1 module pin
  13. VSS - Ground
  14. RB0/INT/CCP1 - External interrupt input / CCP1 module pin
  15. RB1/SDI/SDA - SPI data input / I2C data input
  16. RB2/SDO/SCL - SPI data output / I2C clock input
  17. RB3/PGM - Programming mode select
  18. RB4/PGC - Programming clock

Functional Features

The PIC16F84A-20/P offers several functional features that enhance its usability and performance:

  • Flash program memory allows for easy reprogramming of the microcontroller.
  • EEPROM data memory provides non-volatile storage for critical data.
  • I/O ports with programmable pull-up resistors simplify interfacing with external devices.
  • Timer/counter modules enable precise timing and event counting.
  • Serial communication interfaces (USART, SPI, I2C) facilitate data exchange with other devices.

Advantages and Disadvantages

Advantages

  • Low power consumption makes it suitable for battery-powered applications.
  • High-performance RISC CPU ensures efficient execution of instructions.
  • Wide operating voltage range allows for flexibility in power supply selection.
  • Compact package size enables integration into space-constrained designs.

Disadvantages

  • Limited program memory (1K words) may restrict the complexity of applications.
  • Limited data memory (68 bytes RAM, 64 bytes EEPROM) may impose constraints on data storage and manipulation.
  • Lack of advanced peripherals (e.g., ADC, PWM) may limit its suitability for certain applications.

Working Principles

The PIC16F84A-20/P operates based on the principles of a RISC (Reduced Instruction Set Computer) architecture. It executes instructions stored in its program memory to perform various tasks. The microcontroller interacts with external devices through its I/O ports, timers, and communication interfaces. By manipulating these resources, it can control and process data according to the programmed instructions.

Detailed Application Field Plans

The PIC16F84A-20/P finds application in various fields, including but not limited to:

  1. Home automation systems
  2. Industrial control systems
  3. Automotive electronics
  4. Consumer electronics
  5. Medical devices
  6. Robotics

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van PIC16F84A-20/P in technische oplossingen

  1. What is the maximum clock frequency of PIC16F84A-20/P?
    - The maximum clock frequency of PIC16F84A-20/P is 20 MHz.

  2. How many I/O pins does PIC16F84A-20/P have?
    - PIC16F84A-20/P has a total of 13 I/O pins.

  3. What is the program memory size of PIC16F84A-20/P?
    - The program memory size of PIC16F84A-20/P is 1K x 14 (1,024 words).

  4. Can PIC16F84A-20/P be used for controlling DC motors?
    - Yes, PIC16F84A-20/P can be used for controlling DC motors through its I/O pins and PWM capabilities.

  5. Does PIC16F84A-20/P have built-in analog-to-digital conversion (ADC) capability?
    - No, PIC16F84A-20/P does not have built-in ADC capability.

  6. What are the communication interfaces supported by PIC16F84A-20/P?
    - PIC16F84A-20/P supports serial communication through its USART module.

  7. Is PIC16F84A-20/P suitable for battery-powered applications?
    - Yes, PIC16F84A-20/P is suitable for battery-powered applications due to its low power consumption.

  8. Can PIC16F84A-20/P be programmed using a high-level language like C?
    - Yes, PIC16F84A-20/P can be programmed using high-level languages like C through appropriate compilers.

  9. What are the typical applications of PIC16F84A-20/P?
    - Typical applications of PIC16F84A-20/P include embedded control systems, consumer electronics, and industrial automation.

  10. Is PIC16F84A-20/P suitable for temperature sensing applications?
    - Yes, PIC16F84A-20/P can be used for temperature sensing applications with the addition of external temperature sensors connected to its I/O pins.