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PCF8575DW from TI,Texas Instruments

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PCF8575DW

Manufacturer: TI

Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
PCF8575DW TI 7 In Stock

Description and Introduction

Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SOIC -40 to 85 The **PCF8575DW** is a versatile **16-bit I/O expander** designed to enhance the input/output capabilities of microcontrollers and embedded systems. Utilizing the **I²C-bus interface**, this component allows for easy integration with minimal wiring, making it ideal for applications requiring additional GPIO pins.  

Housed in a **SOIC-24 package**, the PCF8575DW features **quasi-bidirectional I/O ports**, each capable of independently sourcing or sinking current. Its interrupt output pin signals changes on the input lines, reducing the need for continuous polling and improving system efficiency. With a **wide voltage range (2.5V to 6V)**, it supports compatibility across various logic levels.  

Key applications include **industrial control systems, LED displays, sensor interfacing, and keyboard scanning**, where expanding I/O resources is essential. The device also includes **internal power-on reset circuitry**, ensuring stable operation upon startup.  

Engineers favor the PCF8575DW for its **low power consumption, simple interfacing, and robust performance** in space-constrained designs. Its ability to cascade multiple devices on a single I²C bus further enhances scalability, making it a reliable choice for expanding digital interfaces efficiently.  

For detailed specifications, always refer to the official datasheet to ensure proper implementation in your circuit design.

Application Scenarios & Design Considerations

Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SOIC -40 to 85

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