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PCA9534D from PHI,Philips

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PCA9534D

Manufacturer: PHI

8-bit I2C and SMBus, low power I/O port with interrupt

Partnumber Manufacturer Quantity Availability
PCA9534D PHI 940 In Stock

Description and Introduction

8-bit I2C and SMBus, low power I/O port with interrupt The **PCA9534D** from Philips is a versatile **I/O expander** designed to enhance the input/output capabilities of microcontrollers and embedded systems. This **8-bit device** operates via the **I²C-bus interface**, making it an efficient solution for applications requiring additional GPIO pins without increasing the complexity of the main controller.  

Featuring **low-voltage operation** (2.3V to 5.5V), the PCA9534D is suitable for both **3.3V and 5V systems**. It offers **quasi-bidirectional I/O ports**, eliminating the need for external pull-up resistors and simplifying circuit design. Each port can be individually configured as an input or output, providing flexibility in system integration.  

Key advantages include **interrupt functionality**, which alerts the host controller of 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**, **consumer electronics**, and **embedded computing**, where expanding I/O capabilities is essential. With its **low power consumption** and **compact SOIC package**, the PCA9534D is a reliable choice for space-constrained designs.  

Philips' robust design ensures compatibility with standard I²C protocols, making the PCA9534D a practical solution for engineers seeking efficient I/O expansion.

Application Scenarios & Design Considerations

8-bit I2C and SMBus, low power I/O port with interrupt

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