PIC17C42A-25E/L

1. Introduction

The PIC17C42A-25E/L is a microcontroller belonging to the PIC17Cxx family, which is manufactured by Microchip Technology Inc. This entry provides an overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

2. Basic Information Overview

• Category: Microcontroller
• Use: Embedded control applications
• Characteristics: High performance, low power consumption, versatile I/O capabilities
• Package: 84-pin PLCC (Plastic Leaded Chip Carrier)
• Essence: The PIC17C42A-25E/L is designed for real-time embedded control applications.
• Packaging/Quantity: Tray packaging, quantity varies based on order size

3. Specifications

• Operating Voltage: 4.5V to 5.5V
• Clock Speed: 25 MHz
• Program Memory Size: 16 KB
• RAM Size: 368 bytes
• I/O Pins: 33
• Timers: 3
• Analog-to-Digital Converter (ADC): 8 channels, 10-bit resolution

4. Detailed Pin Configuration

The PIC17C42A-25E/L features a total of 84 pins, each serving specific functions related to input/output, power supply, communication interfaces, and other functionalities. A detailed pinout diagram can be found in the product datasheet.

5. Functional Features

• High-Speed Processing: Capable of executing instructions at a high clock speed of 25 MHz.
• Versatile I/O Capabilities: 33 I/O pins allow for flexible interfacing with external devices and peripherals.
• Analog-to-Digital Conversion: Integrated ADC with 8 channels and 10-bit resolution for analog sensor interfacing.
• Timers and Counters: Three built-in timers for precision timing and control applications.

6. Advantages and Disadvantages

Advantages

• High processing speed
• Low power consumption
• Versatile I/O capabilities

Disadvantages

• Limited RAM size
• Limited program memory size

7. Working Principles

The PIC17C42A-25E/L operates based on the Harvard architecture, featuring separate program and data memories. It executes instructions fetched from program memory and interacts with external devices through its I/O pins and communication interfaces.

8. Detailed Application Field Plans

The PIC17C42A-25E/L is well-suited for a wide range of embedded control applications, including but not limited to: - Industrial automation - Consumer electronics - Automotive systems - Medical devices - Home appliances

9. Detailed and Complete Alternative Models

• PIC17C43-25E/L
• PIC17C44-25E/L
• PIC17C45-25E/L
• PIC17C46-25E/L

In conclusion, the PIC17C42A-25E/L microcontroller offers high performance and versatile I/O capabilities, making it suitable for various embedded control applications. However, its limited RAM and program memory sizes should be considered when selecting the appropriate microcontroller for a specific application.

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