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PCA9535DB from TI,Texas Instruments

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PCA9535DB

Manufacturer: TI

Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-SSOP -40 to 85

Partnumber Manufacturer Quantity Availability
PCA9535DB TI 13 In Stock

Description and Introduction

Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-SSOP -40 to 85 The **PCA9535DB** from Texas Instruments is a versatile 16-bit I/O expander designed to enhance microcontroller-based systems by providing additional general-purpose input/output (GPIO) ports. This integrated circuit (IC) communicates via the I²C-bus interface, making it an efficient solution for expanding I/O capabilities in space-constrained applications.  

Featuring low-voltage operation (1.65V to 5.5V), the PCA9535DB is compatible with a wide range of microcontrollers and processors. Each of its 16 I/O pins can be independently configured as an input or output, offering flexibility for interfacing with sensors, switches, LEDs, and other peripherals. The device includes internal pull-up resistors, reducing the need for external components and simplifying PCB design.  

With interrupt functionality, the PCA9535DB can alert the host microcontroller of input state changes, minimizing the need for continuous polling and improving system efficiency. Its robust ESD protection ensures reliability in industrial, automotive, and consumer applications.  

Housed in a compact SSOP-24 package, the PCA9535DB is ideal for applications requiring scalable I/O expansion, such as embedded systems, automation, and IoT devices. Its combination of performance, flexibility, and ease of integration makes it a practical choice for engineers seeking efficient I/O management solutions.

Application Scenarios & Design Considerations

Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-SSOP -40 to 85

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