PCF8575PWRManufacturer: TI Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-TSSOP -40 to 85 | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCF8575PWR | TI | 2234 | In Stock |
Description and Introduction
Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output 24-TSSOP -40 to 85 # Introduction to the PCF8575PWR I/O Expander  
The **PCF8575PWR** is a versatile 16-bit I/O expander designed to enhance microcontroller-based systems by providing additional input/output ports via the I²C bus. This CMOS-based integrated circuit is widely used in applications requiring extra GPIO pins, such as industrial controls, automation, and embedded systems.   Featuring a simple two-wire serial interface, the PCF8575PWR simplifies system design while maintaining low power consumption. Each of its 16 I/O pins can be independently configured as an input or output, offering flexibility in interfacing with sensors, switches, LEDs, and other peripherals. The device supports interrupt functionality, allowing efficient event-driven operation by alerting the host microcontroller when input states change.   With a wide operating voltage range (2.5V to 5.5V), the PCF8575PWR is compatible with various logic levels, making it suitable for mixed-voltage environments. Its compact TSSOP-24 package ensures space-efficient PCB integration.   Engineers favor the PCF8575PWR for its ease of use, reliability, and cost-effectiveness in expanding I/O capabilities without complex circuitry. Whether for prototyping or production, this component provides a practical solution for scalable system designs. |
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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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