IMS82C55AZ96

Product Overview

Category: Integrated Circuit (IC)

Use: The IMS82C55AZ96 is a versatile programmable peripheral interface chip that can be used in various electronic systems for interfacing with external devices.

Characteristics: - Programmable: The IMS82C55AZ96 can be programmed to perform different functions based on the requirements of the system. - Versatile: It supports three modes of operation - mode 0, mode 1, and mode 2, providing flexibility in interfacing with different devices. - High Speed: It operates at a high clock frequency, enabling fast data transfer between the microprocessor and external devices.

Package: The IMS82C55AZ96 is available in a 40-pin dual in-line package (DIP), which is a common package type for ICs.

Essence: The IMS82C55AZ96 acts as an interface between the microprocessor and external devices, allowing data transfer and control signals to be exchanged.

Packaging/Quantity: The IMS82C55AZ96 is typically sold in reels or tubes containing multiple units, with the exact quantity depending on the supplier.

Specifications

• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 8 MHz
• Number of I/O Ports: 24
• Number of Interrupt Inputs: 3
• Number of Timer/Counters: 2
• Data Bus Width: 8 bits

Pin Configuration

The IMS82C55AZ96 has a total of 40 pins. Here is the detailed pin configuration:

Functional Features

The IMS82C55AZ96 offers the following functional features:

1. Three Modes of Operation:

   • Mode 0: Basic Input/Output (I/O) mode
   • Mode 1: Strobed I/O mode
   • Mode 2: Bidirectional I/O mode

2. I/O Ports:

   • The chip provides 24 I/O ports that can be configured as inputs or outputs.
   • Each port can be individually programmed for input or output operation.

3. Interrupt Inputs:

   • The IMS82C55AZ96 has three interrupt inputs, allowing external devices to request attention from the microprocessor.

4. Timer/Counters:

   • It includes two 16-bit programmable timer/counters that can be used for various timing and counting applications.

Advantages and Disadvantages

Advantages: - Versatility: The IMS82C55AZ96 can be programmed to meet specific system requirements, making it suitable for a wide range of applications. - High Speed: Its high clock frequency enables fast data transfer, improving overall system performance. - Multiple I/O Ports: The 24 I/O ports provide ample connectivity options for interfacing with external devices.

Disadvantages: - Limited Data Bus Width: The 8-bit data bus may restrict the amount of data that can be transferred at once. - Power Consumption: The chip consumes power even when not in use, which may impact battery-powered systems.

Working Principles

The IMS82C55AZ96 operates by receiving commands and data from the microprocessor through its control pins. It then performs the specified operations based on the selected mode and configuration. The chip communicates with external devices using its I/O ports, exchanging data and control signals as required.

Application Field Plans

The IMS82C55AZ96 finds applications in various electronic systems, including but not limited to:

1. Industrial Control Systems: It can be used to interface with sensors, actuators, and other devices in industrial automation systems.
2. Communication Systems: The chip can facilitate data transfer between microcontrollers and communication modules, enabling reliable communication.
3. Embedded Systems: It can be employed in embedded systems for interfacing with peripherals such as displays, keyboards, and memory devices.

Alternative Models

Here are some alternative models that offer similar functionality to the IMS82C55AZ96:

1. Intel 8255A
2. Motorola MC6821
3. Texas Instruments SN74LS244

These alternatives can be considered based on specific requirements and availability.

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