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PCF8574APW from TI,Texas Instruments

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PCF8574APW

Manufacturer: TI

Remote 8-Bit I/O Expander for I2C-Bus

Partnumber Manufacturer Quantity Availability
PCF8574APW TI 300 In Stock

Description and Introduction

Remote 8-Bit I/O Expander for I2C-Bus # Introduction to the PCF8574APW  

The PCF8574APW is a versatile remote 8-bit I/O expander designed for I²C-bus applications. Manufactured in a TSSOP-16 package, this CMOS IC provides an efficient solution for expanding digital input/output capabilities in microcontroller-based systems.  

With its I²C interface, the PCF8574APW simplifies communication between a host controller and multiple peripheral devices, reducing wiring complexity. It features eight quasi-bidirectional I/O pins that can be individually configured as inputs or outputs without requiring additional control signals. The device supports voltage levels from 2.5V to 6V, making it compatible with a wide range of microcontrollers and logic families.  

Key applications include driving LEDs, reading switches, and interfacing with sensors or displays. The built-in interrupt output pin enhances system responsiveness by alerting the host when input states change. Additionally, its low standby current consumption makes it suitable for power-sensitive designs.  

The PCF8574APW is a reliable and cost-effective solution for expanding I/O ports in embedded systems, offering ease of integration and robust performance in industrial, automotive, and consumer electronics applications.

Application Scenarios & Design Considerations

Remote 8-Bit I/O Expander for I2C-Bus

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