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PCA9534ADW from TI,Texas Instruments

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PCA9534ADW

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
PCA9534ADW TI 4 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 The **PCA9534ADW** from Texas Instruments is an 8-bit I²C-bus and SMBus I/O expander designed to enhance system flexibility by providing additional GPIO (General-Purpose Input/Output) ports. This low-voltage CMOS device operates within a **1.65V to 5.5V** range, making it suitable for interfacing with both 3.3V and 5V microcontrollers.  

Featuring an **I²C/SMBus-compatible interface**, the PCA9534ADW simplifies communication with host controllers while supporting clock frequencies up to **400 kHz**. Each of its eight I/O pins can be independently configured as an input or output, with internal pull-up resistors eliminating the need for external components in many applications.  

Key features include **interrupt output** for monitoring input changes, reducing the need for continuous polling, and **low standby current consumption**, making it ideal for power-sensitive designs. The device also offers polarity inversion capability, allowing for flexible signal conditioning.  

Housed in a **SOIC-16 (DW) package**, the PCA9534ADW is well-suited for space-constrained applications such as industrial control systems, consumer electronics, and embedded computing. Its robust design ensures reliable performance in diverse environments, providing a cost-effective solution for expanding I/O capabilities.  

With its blend of versatility and efficiency, the PCA9534ADW serves as a practical choice for engineers seeking scalable I/O expansion in modern electronic systems.

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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