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PCA9534DW from TI,Texas Instruments

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PCA9534DW

Manufacturer: TI

Remote 8-Bit I2C and Low-Power I/O Expander with Interrupt Output and Configuration Registers 16-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
PCA9534DW TI 869 In Stock

Description and Introduction

Remote 8-Bit I2C and Low-Power I/O Expander with Interrupt Output and Configuration Registers 16-SOIC -40 to 85 **Introduction to the PCA9534DW from Texas Instruments**  

The PCA9534DW is a versatile, low-power 8-bit I/O expander designed to enhance system flexibility by providing additional GPIO (General-Purpose Input/Output) ports via an I²C-bus interface. This CMOS-based device is ideal for applications requiring efficient space utilization and simplified control of multiple peripherals without increasing microcontroller pin count.  

Featuring interrupt output functionality, the PCA9534DW can alert the host controller of input state changes, reducing the need for continuous polling. Its wide voltage range (2.3V to 5.5V) ensures compatibility with various logic levels, making it suitable for mixed-voltage systems. Additionally, the device supports hot insertion, minimizing disruptions in live environments.  

With programmable pull-up resistors and polarity inversion, the PCA9534DW offers configurable I/O settings to adapt to diverse circuit requirements. Its industrial-grade robustness and low standby current consumption make it well-suited for embedded systems, industrial automation, and consumer electronics.  

Housed in a compact SOIC-16 package, the PCA9534DW balances performance and space efficiency, providing a reliable solution for expanding digital I/O capabilities in constrained designs. Its ease of integration and dependable operation underscore its value in modern electronic applications.

Application Scenarios & Design Considerations

Remote 8-Bit I2C and Low-Power I/O Expander with Interrupt Output and Configuration Registers 16-SOIC -40 to 85

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