CMP82C55AZ

Introduction

The CMP82C55AZ is a versatile programmable peripheral interface (PPI) chip that belongs to the category of integrated circuits. This entry provides an overview of the basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models of the CMP82C55AZ.

Basic Information Overview

• Category: Integrated Circuit
• Use: The CMP82C55AZ is commonly used as a peripheral interface controller in various electronic devices such as computers, industrial control systems, and embedded systems.
• Characteristics: It is known for its versatility, programmability, and compatibility with a wide range of applications.
• Package: The CMP82C55AZ is typically available in a 40-pin dual in-line package (DIP).
• Essence: The essence of the CMP82C55AZ lies in its ability to provide flexible I/O capabilities and timing control for interfacing with external devices.
• Packaging/Quantity: It is usually packaged individually and is available in varying quantities based on the manufacturer's specifications.

Specifications

The CMP82C55AZ features the following specifications: - Three 8-bit I/O ports (A, B, and C) - Programmable mode selection for each port - Read and write control for each port - Interrupt request capability - Compatible with various microprocessors and microcontrollers - Operating voltage range: 4.5V to 5.5V - Operating temperature range: -40°C to 85°C

Detailed Pin Configuration

The CMP82C55AZ has a detailed pin configuration consisting of 40 pins, including power supply pins, ground pins, I/O ports, control signals, and interrupt lines. The pinout diagram and detailed pin functions can be found in the datasheet provided by the manufacturer.

Functional Features

The key functional features of the CMP82C55AZ include: - Versatile I/O capabilities - Programmable modes for flexible operation - Interrupt handling for efficient communication - Compatibility with various microprocessors - High reliability and robust performance

Advantages and Disadvantages

Advantages

• Versatility in interfacing with external devices
• Programmable modes for customized operation
• Reliable interrupt handling for efficient communication
• Wide compatibility with microprocessors and microcontrollers

Disadvantages

• Limited number of I/O ports compared to newer alternatives
• May require additional support components for certain applications
• Availability may be limited due to being an older model

Working Principles

The CMP82C55AZ operates based on the programmed modes and control signals received from the host system. It interfaces with external devices through its I/O ports and handles data transfer, timing control, and interrupt requests based on the configured settings.

Detailed Application Field Plans

The CMP82C55AZ finds extensive use in various application fields, including: - Computer peripherals - Industrial control systems - Embedded systems - Communication equipment - Test and measurement instruments

Detailed and Complete Alternative Models

While the CMP82C55AZ has been a popular choice for many years, there are alternative models available in the market that offer similar or enhanced features. Some of the alternative models include: - Intel 8255 - Zilog Z8536 - AMD Am9517A

In conclusion, the CMP82C55AZ remains a reliable choice for interfacing and control applications, especially in legacy systems and specialized projects. Its versatile I/O capabilities, programmable features, and compatibility with various microprocessors make it a valuable component in electronic design and development.

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