PCF8575DWManufacturer: TI Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SOIC -40 to 85 | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCF8575DW | TI | 7 | In Stock |
Description and Introduction
Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SOIC -40 to 85 The **PCF8575DW** is a versatile **16-bit I/O expander** designed to enhance the input/output capabilities of microcontrollers and embedded systems. Utilizing the **I²C-bus interface**, this component allows for easy integration with minimal wiring, making it ideal for applications requiring additional GPIO pins.  
Housed in a **SOIC-24 package**, the PCF8575DW features **quasi-bidirectional I/O ports**, each capable of independently sourcing or sinking current. Its interrupt output pin signals changes on the input lines, reducing the need for continuous polling and improving system efficiency. With a **wide voltage range (2.5V to 6V)**, it supports compatibility across various logic levels.   Key applications include **industrial control systems, LED displays, sensor interfacing, and keyboard scanning**, where expanding I/O resources is essential. The device also includes **internal power-on reset circuitry**, ensuring stable operation upon startup.   Engineers favor the PCF8575DW for its **low power consumption, simple interfacing, and robust performance** in space-constrained designs. Its ability to cascade multiple devices on a single I²C bus further enhances scalability, making it a reliable choice for expanding digital interfaces efficiently.   For detailed specifications, always refer to the official datasheet to ensure proper implementation in your circuit design. |
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Application Scenarios & Design Considerations
Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-SOIC -40 to 85
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