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PCF8575DBQR from TI,Texas Instruments

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PCF8575DBQR

Manufacturer: TI

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

Partnumber Manufacturer Quantity Availability
PCF8575DBQR TI 1415 In Stock

Description and Introduction

Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SSOP -40 to 85 # Introduction to the PCF8575DBQR  

The PCF8575DBQR is a versatile 16-bit I/O expander designed to enhance the input/output capabilities of microcontrollers and embedded systems. Utilizing an I²C-bus interface, this component allows for easy expansion of digital I/O ports while minimizing the need for additional GPIO pins on the host controller.  

Featuring quasi-bidirectional I/O ports with internal pull-up resistors, the PCF8575DBQR simplifies interfacing with external devices such as sensors, switches, and displays. Each I/O pin can be independently configured as an input or output, offering flexibility in system design. The device operates at a wide voltage range (2.5V to 5.5V), making it compatible with various logic levels.  

With interrupt functionality, the PCF8575DBQR can notify the microcontroller of input state changes, reducing the need for continuous polling and improving system efficiency. Its compact TSSOP-24 package ensures space-efficient integration into PCB designs.  

Ideal for applications requiring additional I/O expansion, the PCF8575DBQR is commonly used in industrial control, automation, and consumer electronics. Its straightforward I²C interface and robust performance make it a reliable choice for designers seeking scalable digital I/O solutions.

Application Scenarios & Design Considerations

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

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