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PCF8575CDW from TI,Texas Instruments

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PCF8575CDW

Manufacturer: TI

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

Partnumber Manufacturer Quantity Availability
PCF8575CDW TI 20 In Stock

Description and Introduction

Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SOIC -40 to 85 # Introduction to the PCF8575CDW I/O Expander  

The PCF8575CDW is a versatile 16-bit I²C-bus I/O expander designed to enhance microcontroller-based systems by providing additional digital input/output (I/O) ports. Manufactured in a compact SOIC package, this component is widely used in applications requiring extra GPIO pins without increasing the complexity of the main controller.  

Featuring an I²C interface, the PCF8575CDW simplifies communication with microcontrollers, supporting bidirectional data transfer and enabling easy integration into existing designs. It operates with a supply voltage ranging from 2.5V to 5.5V, making it compatible with both 3.3V and 5V systems.  

Key functionalities include interrupt output capability, which signals the host controller upon input state changes, reducing the need for continuous polling. The device also supports hot insertion, ensuring stable operation in dynamic environments.  

Common applications include industrial control systems, LED displays, keypad interfaces, and sensor monitoring. Its low power consumption and robust design make it suitable for battery-operated and space-constrained projects.  

With its straightforward I²C protocol and expandable architecture, the PCF8575CDW is a reliable solution for designers seeking efficient I/O expansion in embedded systems.

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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