PIC18F8490T-I/PT

Introduction

The PIC18F8490T-I/PT is a microcontroller belonging to the PIC18 family of microcontrollers developed 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.

Basic Information Overview

• Category: Microcontroller
• Use: The PIC18F8490T-I/PT is used for embedded control applications in various electronic devices such as consumer electronics, industrial automation, automotive systems, and more.
• Characteristics: It features high performance, low power consumption, and a wide range of peripherals for versatile applications.
• Package: The PIC18F8490T-I/PT is available in a 80-pin TQFP (Thin Quad Flat Package) package.
• Essence: It is designed to provide efficient and reliable control capabilities for embedded systems.
• Packaging/Quantity: The PIC18F8490T-I/PT is typically supplied in tape and reel packaging with a quantity of 250 units per reel.

Specifications

• Architecture: 8-bit
• CPU Speed: Up to 40 MHz
• Program Memory Size: 16 KB
• RAM Size: 768 bytes
• Data EEPROM Size: 256 bytes
• I/O Pins: 68
• Timers: 4 x 8-bit, 3 x 16-bit
• Analog-to-Digital Converter (ADC): 10-bit, up to 24 channels
• Communication Interfaces: USART, SPI, I2C
• Operating Voltage Range: 2.0V to 5.5V
• Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The PIC18F8490T-I/PT features a total of 80 pins, each serving specific functions related to input/output, communication, power supply, and other peripheral connections. A detailed pinout diagram and description can be found in the official datasheet provided by Microchip Technology.

Functional Features

• High-Performance CPU: The microcontroller is equipped with a high-speed CPU capable of executing complex tasks efficiently.
• Versatile Peripherals: It offers a wide range of integrated peripherals including timers, ADC, communication interfaces, and more, enabling diverse application possibilities.
• Low Power Consumption: The device is designed to operate with minimal power consumption, making it suitable for battery-powered applications.
• Enhanced Connectivity: With multiple communication interfaces, the microcontroller facilitates seamless connectivity with external devices.

Advantages and Disadvantages

Advantages

• Versatile peripheral integration
• Low power consumption
• Wide operating voltage range
• Enhanced connectivity options

Disadvantages

• Limited program memory size compared to some competing models
• Relatively fewer I/O pins for certain applications

Working Principles

The PIC18F8490T-I/PT operates based on the Harvard architecture, featuring separate program and data memory spaces. It executes instructions fetched from program memory and interacts with peripherals and external devices to perform designated tasks based on the embedded software.

Detailed Application Field Plans

The PIC18F8490T-I/PT finds applications in various fields including: - Consumer Electronics: Control systems for home appliances, audio/video equipment - Industrial Automation: Programmable logic controllers, motor control systems - Automotive Systems: Engine control units, dashboard displays - Medical Devices: Patient monitoring systems, diagnostic equipment - IoT (Internet of Things): Sensor nodes, smart devices

Detailed and Complete Alternative Models

• PIC18F8580-I/PT
• PIC18F8680-I/PT
• PIC18F8780-I/PT
• PIC18F8785-I/PT

These alternative models offer similar functionalities and are compatible with the same development tools and software ecosystem, providing flexibility for design considerations.

In conclusion, the PIC18F8490T-I/PT microcontroller from Microchip Technology offers a balance of performance, versatility, and power efficiency, making it suitable for a wide range of embedded control applications across different industries.

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