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PCA9536D from TI,Texas Instruments

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PCA9536D

Manufacturer: TI

4-bit I2C-bus and SMBus I/O port

Partnumber Manufacturer Quantity Availability
PCA9536D TI 100 In Stock

Description and Introduction

4-bit I2C-bus and SMBus I/O port The **PCA9536D** from Texas Instruments is a versatile **4-bit I²C-bus and SMBus I/O expander** designed to simplify digital interface expansion in embedded systems. This compact device provides four configurable general-purpose input/output (GPIO) pins, allowing designers to efficiently manage additional digital signals without increasing microcontroller pin count.  

Featuring an **I²C-compatible serial interface**, the PCA9536D supports standard (100 kHz) and fast (400 kHz) communication modes, ensuring seamless integration with a wide range of microcontrollers. Each I/O pin can be independently configured as an input or output, with internal pull-up resistors eliminating the need for external components in many applications.  

The PCA9536D operates over a **2.3V to 5.5V supply range**, making it suitable for both 3.3V and 5V systems. Its low standby current consumption enhances energy efficiency in power-sensitive designs. Additionally, the device includes interrupt functionality, enabling immediate notification of input state changes and reducing the need for continuous polling.  

Common applications include **sensor interfacing, LED control, and system monitoring** in industrial, consumer, and automotive electronics. With its small footprint and robust performance, the PCA9536D is an excellent choice for expanding digital I/O capabilities in space-constrained designs.

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