IS82C55A Allicdata Electronics
Allicdata Part #:

IS82C55A-ND

Manufacturer Part#:

IS82C55A

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Intersil
Short Description: IC I/O EXPANDER 24B 44PLCC
More Detail: I/O Expander 24 Parallel 44-PLCC (16.58x16.58)
DataSheet: IS82C55A datasheetIS82C55A Datasheet/PDF
Quantity: 1000
Stock 1000Can Ship Immediately
Specifications
Series: --
Packaging: Tube 
Part Status: Obsolete
Number of I/O: 24
Interface: Parallel
Interrupt Output: No
Features: --
Output Type: Open Drain
Current - Output Source/Sink: 2.5mA
Voltage - Supply: 4.5 V ~ 5.5 V
Operating Temperature: -40°C ~ 85°C
Mounting Type: Surface Mount
Package / Case: 44-LCC (J-Lead)
Supplier Device Package: 44-PLCC (16.58x16.58)
Base Part Number: 82C55A
Description

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The IS82C55A is an 8-bit input/output (I/O) expander from Intersil Corporation used to provide multiple I/O lines in a wide variety of applications. It offers 8-sensitive inputs and 8-line output ports, and a variety of programmable features. It is widely used in automotive, medical, industrial and control applications.

Application fields

IS82C55A is most commonly used in automotive, medical, industrial and control applications. It is used to provide multiple I/O lines, such as inputs for sensors, switches and buttons, and outputs for controlling motor speed and other devices. It is also used in embedded systems to control peripherals like LCD screens, digital potentiometers and embedded MCU buses. Furthermore, it is widely used in applications where precise timing is necessary, such as locking systems, flight control and timing systems.

Working Principle

The IS82C55A is a 8-bit I/O expander that facilitates the connection of up to eight I/O lines in embedded systems. It has two groups of 8-bit registers, each with two 2-bit ports. The data register is used to read and write data to the I/O lines. The control register is used to configure the operation of the data register. The IS82C55A has eight outputs, and is designed for output current up to 25mA. It also has eight input pins, and is designed for input current up to 10µA. The IS82C55A also contains an enabling feature, which allows the user to enable or disable the I/O pins.

In operation, the IS82C55A receives data from the microprocessor via a series of instructions. These instructions tell the IS82C55A what pins to read and write data to, and how to configure the ports and registers. The IS82C55A then processes the data, and sends back the results to the microprocessor. The IS82C55A also contains a feature which allows it to generate an interrupt when a pin state changes, allowing the microprocessor to be alerted. This enables the IS82C55A to serve as an interrupt source for almost any embedded system.

Conclusion

The IS82C55A is a versatile I/O expander from Intersil Corporation. Its versatile design and versatile programmable features make it a popular choice for embedded system designers. It is most commonly used in automotive, medical, industrial and control applications, where it is used to provide multiple I/O lines, such as inputs for sensors, switches and buttons, and outputs for motor speed and other devices.

The IS82C55A is a highly configurable device that is capable of supporting up to eight I/O lines. It also supports interrupts, and has an input current requirement of up to 10µA. The IS82C55A is an essential integrated circuit for embedded system designers, making it a great choice for many applications.

The specific data is subject to PDF, and the above content is for reference

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