PCF8575PWManufacturer: TI Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-TSSOP -40 to 85 | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCF8575PW | TI | 6 | In Stock |
Description and Introduction
Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-TSSOP -40 to 85 The **PCF8575PW** is a versatile **I/O expander** integrated circuit designed to enhance the input/output capabilities of microcontrollers and other digital systems. Manufactured in a **TSSOP-24** package, this component provides **16-bit parallel I/O expansion** via an **I²C-bus interface**, making it an efficient solution for applications requiring additional GPIO pins.  
Featuring **quasi-bidirectional ports**, the PCF8575PW allows each pin to function as either an input or output without requiring a separate data direction register. This simplifies system design while maintaining flexibility. The device operates at **2.5V to 6V**, ensuring compatibility with a wide range of logic levels.   Key applications include **industrial control systems, LED displays, sensor interfacing, and keyboard scanning**, where expanding I/O resources is essential. The built-in **interrupt output** pin enhances efficiency by notifying the host microcontroller of input state changes, reducing polling overhead.   With its **low standby current consumption**, the PCF8575PW is suitable for **battery-powered devices**. Its robust design ensures reliable performance in various environments, making it a practical choice for engineers seeking scalable I/O expansion.   For detailed specifications, consult the official datasheet to ensure proper integration within your design. |
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Application Scenarios & Design Considerations
Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-TSSOP -40 to 85
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