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PCA9535BS from NXP,NXP Semiconductors

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PCA9535BS

Manufacturer: NXP

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

Partnumber Manufacturer Quantity Availability
PCA9535BS NXP 14095 In Stock

Description and Introduction

16-bit I2C-bus and SMBus, low power I/O port with interrupt The **PCA9535BS** from NXP Semiconductors is a versatile 16-bit I²C-bus and SMBus I/O expander designed to enhance system flexibility in microcontroller-based applications. This low-voltage device operates between 2.3V and 5.5V, making it suitable for interfacing with a wide range of logic levels.  

Featuring 16 quasi-bidirectional I/O pins, the PCA9535BS allows for easy expansion of digital input/output capabilities without requiring additional microcontroller ports. Each pin can be individually configured as an input or output, providing adaptability for various interfacing needs. The device also includes internal pull-up resistors, simplifying circuit design by reducing external component count.  

Communication is facilitated through the I²C-bus interface, supporting clock frequencies up to 400 kHz, ensuring efficient data transfer. Interrupt functionality is integrated to alert the host controller of input state changes, minimizing polling overhead.  

With its robust ESD protection and industrial temperature range (-40°C to +85°C), the PCA9535BS is well-suited for industrial, consumer, and embedded applications. Its compact TSSOP package ensures space-efficient PCB integration.  

Ideal for applications such as LED control, keypad scanning, and sensor interfacing, the PCA9535BS offers a reliable and scalable solution for expanding digital I/O in modern electronic systems.

Application Scenarios & Design Considerations

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

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