PCA9539PWG4Manufacturer: TI-BB Remote 16-Bit I2C And SMBus, Low-Power I/O Expander With Interrupt Output, Reset & Config. Registers 24-TSSOP -40 to 85 | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9539PWG4 | TI-BB | 2 | In Stock |
Description and Introduction
Remote 16-Bit I2C And SMBus, Low-Power I/O Expander With Interrupt Output, Reset & Config. Registers 24-TSSOP -40 to 85 The **PCA9539PWG4** from Texas Instruments is a versatile 16-bit I²C-bus and SMBus I/O expander designed to enhance system flexibility in various applications. This low-voltage device operates within a range of 1.65V to 5.5V, making it suitable for interfacing with both 3.3V and 5V microcontrollers.  
Featuring 16 programmable GPIO pins, the PCA9539PWG4 allows bidirectional data transfer, enabling efficient control and monitoring of peripheral devices. Each I/O can be individually configured as an input or output, with internal pull-up resistors simplifying circuit design. The device supports hot insertion, reducing the risk of damage during live system modifications.   With an I²C interface, the PCA9539PWG4 minimizes microcontroller pin usage while supporting multiple devices on the same bus through configurable hardware addressing. Its interrupt output pin provides real-time status updates, improving system responsiveness.   Ideal for industrial controls, consumer electronics, and embedded systems, the PCA9539PWG4 offers reliable performance in space-constrained designs. Its TSSOP-24 package ensures compact integration while maintaining robust signal integrity. Whether expanding I/O capabilities or simplifying system architecture, this component provides a cost-effective solution for modern electronic designs. |
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Application Scenarios & Design Considerations
Remote 16-Bit I2C And SMBus, Low-Power I/O Expander With Interrupt Output, Reset & Config. Registers 24-TSSOP -40 to 85
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