PIC18F4455T-I/ML

Introduction

The PIC18F4455T-I/ML is a microcontroller belonging to the PIC18 family of microcontrollers produced 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 PIC18F4455T-I/ML is used for embedded control applications in various electronic devices such as consumer electronics, automotive systems, industrial automation, and more.
• Characteristics: It features high performance, low power consumption, and a wide range of peripherals for interfacing with external components.
• Package: 28-pin QFN (Quad Flat No-Lead) package
• Essence: The essence of the PIC18F4455T-I/ML lies in its ability to provide a versatile and reliable platform for embedded control and processing.
• Packaging/Quantity: Available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Architecture: 8-bit
• CPU Speed: Up to 48 MHz
• Program Memory Size: 32 KB Flash
• RAM Size: 2 KB
• Data EEPROM Size: 256 Bytes
• I/O Pins: 24
• Timers: 4 x 8-bit, 1 x 16-bit
• Analog-to-Digital Converter (ADC): 13 channels, 10-bit resolution
• Communication Interfaces: USART, SPI, I2C
• Operating Voltage Range: 2.0V to 5.5V
• Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The PIC18F4455T-I/ML features a 28-pin QFN package with specific pin assignments for power, ground, I/O, communication, and other functions. A detailed pinout diagram can be found in the datasheet provided by Microchip Technology.

Functional Features

• High-Speed Processing: The microcontroller operates at speeds of up to 48 MHz, enabling rapid data processing and control operations.
• Versatile Peripherals: It offers a wide range of peripherals including ADC, timers, communication interfaces, and more, allowing for flexible interfacing with external components.
• Low Power Consumption: The device is designed for low power operation, making it suitable for battery-powered applications.
• Enhanced Connectivity: With multiple communication interfaces, the microcontroller facilitates seamless connectivity with other devices and systems.

Advantages and Disadvantages

Advantages

• High-performance 8-bit architecture
• Versatile peripheral set for diverse applications
• Low power consumption for energy-efficient operation
• Wide operating voltage range for flexibility in power supply design

Disadvantages

• Limited program memory size compared to higher-end microcontrollers
• Relatively small RAM size for complex data processing tasks

Working Principles

The PIC18F4455T-I/ML operates based on the principles of embedded control, utilizing its CPU, memory, and peripherals to execute programmed instructions and interact with external hardware. It follows a sequential execution model, responding to input stimuli and producing output responses as per the defined program logic.

Detailed Application Field Plans

The PIC18F4455T-I/ML finds applications in various fields including: - Consumer Electronics: Control interfaces for home appliances, entertainment systems, etc. - Automotive Systems: Engine control, dashboard displays, and vehicle connectivity. - Industrial Automation: Process control, monitoring, and data acquisition systems. - Medical Devices: Patient monitoring, diagnostic equipment, and portable medical instruments.

Detailed and Complete Alternative Models

• PIC18F4550-I/P: Similar 8-bit microcontroller with USB interface and larger program memory.
• PIC18F2550-I/SO: Another 8-bit microcontroller with USB support and compact form factor.
• PIC18F25K50-I/SP: 8-bit microcontroller with enhanced communication features and low-power operation.

In conclusion, the PIC18F4455T-I/ML is a versatile microcontroller suitable for a wide range of embedded control applications, offering a balance of performance, features, and power efficiency.

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