PIC16F84AT-04/SO

Introduction

The PIC16F84AT-04/SO is a microcontroller belonging to the PIC16F family, which is manufactured by Microchip Technology. This entry provides an overview of the product, including its category, use, characteristics, package, essence, packaging/quantity, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Product Overview

• Category: Microcontroller
• Use: Embedded control applications
• Characteristics: Low power consumption, high performance, versatile I/O capabilities
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The PIC16F84AT-04/SO is a versatile and cost-effective microcontroller suitable for a wide range of embedded control applications.
• Packaging/Quantity: Available in tape and reel packaging with varying quantities.

Specifications

• Operating Voltage: 2.0V to 5.5V
• CPU Speed: 4 MHz
• Program Memory Size: 1.75 KB
• RAM Size: 68 bytes
• I/O Pins: 13
• Timers: 1 x 8-bit, 1 x 16-bit
• Analog-to-Digital Converter (ADC): 1 channel, 8-bit resolution
• Communication Interfaces: UART, SPI, I2C

Detailed Pin Configuration

The PIC16F84AT-04/SO features a total of 18 pins, each serving specific functions related to input/output, power supply, and communication interfaces. The detailed pin configuration is as follows: 1. VDD - Power supply voltage 2. VSS - Ground 3. RA2 - I/O pin 4. RA3 - I/O pin 5. RA4/T0CKI - I/O pin or Timer0 clock input 6. MCLR/VPP - Master Clear or programming voltage 7. RB0/INT - I/O pin or external interrupt 8. RB1 - I/O pin 9. RB2 - I/O pin 10. RB3 - I/O pin 11. RB4 - I/O pin 12. RB5 - I/O pin 13. RB6 - I/O pin 14. RB7 - I/O pin 15. VSS - Ground 16. OSC1/CLKIN - Oscillator input 17. OSC2/CLKOUT - Oscillator output 18. VDD - Power supply voltage

Functional Features

• Versatile I/O Capabilities: The microcontroller offers a range of I/O pins, enabling interfacing with various external devices and sensors.
• Integrated Timers: Incorporates both 8-bit and 16-bit timers for precise timing and control applications.
• Analog-to-Digital Conversion: Includes an ADC with 8-bit resolution, allowing for analog signal processing.
• Communication Interfaces: Supports popular serial communication protocols such as UART, SPI, and I2C for seamless data exchange.

Advantages and Disadvantages

Advantages

• Low power consumption
• Cost-effective solution for embedded control applications
• Extensive I/O capabilities
• Integrated peripherals simplify system design

Disadvantages

• Limited program memory size may restrict complex application development
• Relatively lower CPU speed compared to newer microcontrollers

Working Principles

The PIC16F84AT-04/SO operates based on the Harvard architecture, featuring separate program and data memories. It executes instructions fetched from the program memory and interacts with external devices through its I/O pins and communication interfaces. The microcontroller's internal peripherals and timers facilitate precise control and monitoring tasks within embedded systems.

Detailed Application Field Plans

The PIC16F84AT-04/SO finds application in various fields, including but not limited to: - Home automation systems - Industrial control systems - Consumer electronics - Automotive electronics - Sensor interfacing and data acquisition

Detailed and Complete Alternative Models

For users seeking alternatives to the PIC16F84AT-04/SO, several microcontrollers from Microchip Technology and other manufacturers offer similar functionality and performance. Some notable alternatives include: - PIC16F628A - PIC16F877A - ATmega328P - STM32F103C8T6

In conclusion, the PIC16F84AT-04/SO is a versatile microcontroller suitable for a wide range of embedded control applications, offering a balance of performance, features, and cost-effectiveness.

Word Count: 580