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PCA9534ADBR from TI,Texas Instruments

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PCA9534ADBR

Manufacturer: TI

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

Partnumber Manufacturer Quantity Availability
PCA9534ADBR TI 1950 In Stock

Description and Introduction

Remote 8-Bit I2C and Low-Power I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85 The **PCA9534ADBR** from Texas Instruments is an 8-bit I²C-bus and SMBus I/O expander designed to enhance the input/output capabilities of microcontrollers and embedded systems. This versatile component enables bidirectional communication, allowing each of its eight I/O pins to be independently configured as either an input or output.  

Featuring a wide operating voltage range of **1.65V to 5.5V**, the PCA9534ADBR is compatible with both low-voltage and standard logic levels, making it suitable for a variety of applications. Its I²C interface supports clock frequencies up to **400 kHz**, ensuring efficient data transfer in systems requiring multiple peripheral connections.  

Key features include **interrupt output** for monitoring input changes, **low standby current consumption**, and **internal power-on reset** for reliable initialization. The device also provides **polarity inversion registers**, allowing flexible signal conditioning without external components.  

Common applications include **industrial control systems**, **consumer electronics**, and **embedded computing**, where expanding I/O capabilities is essential. Its compact **TSSOP-16** package ensures space-efficient integration into PCB designs.  

With robust performance and ease of integration, the PCA9534ADBR is a practical solution for designers seeking scalable I/O expansion while maintaining system simplicity.

Application Scenarios & Design Considerations

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

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