PIC18F4450-I/ML

Product Overview

Category

The PIC18F4450-I/ML belongs to the category of microcontrollers.

Use

This microcontroller is commonly used in various electronic applications that require embedded control and processing capabilities.

Characteristics

• High-performance 8-bit architecture
• Flash program memory
• Integrated peripherals for enhanced functionality
• Low power consumption
• Wide operating voltage range
• Robust communication interfaces
• Flexible I/O options

Package

The PIC18F4450-I/ML is available in a small form factor package, known as the ML package.

Essence

The essence of this microcontroller lies in its ability to provide efficient and reliable control and processing capabilities in a compact package.

Packaging/Quantity

The PIC18F4450-I/ML is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Microcontroller Family: PIC18F
• Core Size: 8-bit
• Program Memory Size: 32KB (Flash)
• RAM Size: 2KB
• Number of I/O Pins: 34
• Operating Voltage Range: 2.0V to 5.5V
• Maximum Clock Speed: 48MHz
• Communication Interfaces: UART, SPI, I2C
• Analog-to-Digital Converter (ADC): 10-bit, 13 channels
• Timers/Counters: 4 x 8-bit, 1 x 16-bit
• PWM Channels: 5
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PIC18F4450-I/ML has a total of 34 pins, each serving a specific purpose. The pin configuration is as follows:

• Pin 1: VDD (Power Supply)
• Pin 2: RA0/AN0 (Analog Input/Output)
• Pin 3: RA1/AN1 (Analog Input/Output)
• Pin 4: RA2/AN2/VREF-/CVREF (Analog Input/Output, Voltage Reference)
• Pin 5: RA3/AN3/VREF+/C1OUT (Analog Input/Output, Voltage Reference, Comparator Output)
• Pin 6: RA4/T0CKI/C2OUT (Timer0 Clock Input, Comparator Output)
• Pin 7: RA5/AN4/SS/HLVDIN (Analog Input/Output, Slave Select, High/Low Voltage Detect Input)
• Pin 8: RE0/RD/AN5 (Port E Bit 0, Read/Write, Analog Input/Output)
• Pin 9: RE1/WR/AN6 (Port E Bit 1, Write, Analog Input/Output)
• Pin 10: RE2/CS/AN7 (Port E Bit 2, Chip Select, Analog Input/Output)
• ... (remaining pins)

Functional Features

The PIC18F4450-I/ML offers a range of functional features that enhance its usability and performance. Some notable features include:

• Enhanced Capture/Compare/PWM (ECCP) module for advanced motor control applications
• USB 2.0 Full-Speed Device/Host/OTG functionality for versatile connectivity options
• Enhanced USART module for serial communication
• Integrated hardware support for I2C and SPI protocols
• Flexible interrupt handling capabilities for efficient event-driven programming
• On-chip debugging support for easy development and troubleshooting

Advantages and Disadvantages

Advantages

• High-performance architecture enables efficient processing and control tasks.
• Wide operating voltage range allows for compatibility with various power sources.
• Integrated peripherals reduce the need for external components, saving cost and board space.
• Low power consumption extends battery life in portable applications.
• Robust communication interfaces facilitate seamless data exchange with other devices.

Disadvantages

• Limited program memory size may restrict the complexity of applications.
• 8-bit architecture may not be suitable for computationally intensive tasks.
• Lack of on-chip analog-to-digital converters may require external components for certain applications.
• Limited number of I/O pins may limit the connectivity options in complex systems.

Working Principles

The PIC18F4450-I/ML operates based on the principles of microcontroller architecture. It executes instructions stored in its flash program memory to perform various tasks. The microcontroller interacts with external devices through its I/O pins and utilizes its integrated peripherals to handle communication, timing, and control functions. By following a set of instructions, it can process data, respond to events, and execute specific operations as required by the application.

Detailed Application Field Plans

The PIC18F4450-I/ML finds applications in various fields, including but not limited to:

1. Industrial Automation: Control systems, monitoring devices, and data acquisition units.