PCA8574APW,118

Product Overview

Category

The PCA8574APW,118 belongs to the category of I/O expanders.

Use

It is used to increase the number of I/O ports available to a microcontroller or other host microprocessor.

Characteristics

• Package: TSSOP
• Essence: I2C-bus interface
• Packaging/Quantity: Tape and Reel (3000 units per reel)

Specifications

The PCA8574APW,118 features 8-bit remote I/O port for I2C-bus with interrupt. It operates at a voltage range of 2.3V to 5.5V and has a maximum frequency of 400 kHz.

Detailed Pin Configuration

The PCA8574APW,118 has a total of 20 pins, including power supply, ground, I2C-bus interface, and I/O ports.

Functional Features

• Remote I/O expansion for I2C-bus
• 8-bit parallel input/output
• Polarity Inversion Register to configure the polarity of the I/O ports
• Interrupt output

Advantages and Disadvantages

Advantages

• Simplifies I/O expansion in microcontroller-based systems
• Allows for easy interfacing with various sensors and devices
• Low power consumption

Disadvantages

• Limited to 8-bit parallel I/O

Working Principles

The PCA8574APW,118 communicates with the host microcontroller through the I2C-bus interface, allowing the microcontroller to control and monitor the I/O ports remotely.

Detailed Application Field Plans

The PCA8574APW,118 is commonly used in applications such as: - Industrial automation - Home automation - Consumer electronics - IoT devices

Detailed and Complete Alternative Models

Some alternative models to PCA8574APW,118 include: - MCP23008 - PCF8574 - MAX7311

In conclusion, the PCA8574APW,118 is a versatile I/O expander that provides a convenient solution for increasing the number of I/O ports in microcontroller-based systems. Its I2C-bus interface, low power consumption, and remote I/O expansion make it suitable for a wide range of applications in various industries.

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