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PCA9535DWR from TI,Texas Instruments

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PCA9535DWR

Manufacturer: TI

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

Partnumber Manufacturer Quantity Availability
PCA9535DWR TI 9 In Stock

Description and Introduction

Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers 24-SOIC -40 to 85 # Introduction to the PCA9535DWR from Texas Instruments  

The **PCA9535DWR** is a versatile 16-bit I²C-bus and SMBus I/O expander designed by Texas Instruments. It provides general-purpose remote I/O expansion for most microcontroller families via a two-wire bidirectional bus (I²C/SMBus). This component is ideal for applications requiring additional input/output ports while minimizing microcontroller pin usage.  

Key features of the PCA9535DWR include **16 programmable GPIO pins**, configurable as inputs or outputs, with internal pull-up resistors. It operates over a **wide voltage range (2.3V to 5.5V)**, making it compatible with various logic levels. The device supports **interrupt output** for efficient event-driven designs, reducing the need for continuous polling.  

Housed in a **SOIC-24 package**, the PCA9535DWR is suitable for space-constrained designs. Its low standby current consumption enhances energy efficiency in battery-powered systems. Common applications include industrial controls, consumer electronics, and embedded systems where I/O expansion is needed without increasing microcontroller complexity.  

With robust ESD protection and reliable performance, the PCA9535DWR is a dependable solution for expanding digital interfaces in modern electronic designs.

Application Scenarios & Design Considerations

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

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