PCA9674PWManufacturer: NXP Remote 8-bit I/O expander for Fm+ I虏C-bus with interrupt | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9674PW | NXP | 2194 | In Stock |
Description and Introduction
Remote 8-bit I/O expander for Fm+ I虏C-bus with interrupt The **PCA9674PW** from NXP Semiconductors is a versatile 8-bit I/O expander designed to enhance system flexibility in microcontroller-based applications. Utilizing the I²C-bus interface, it allows efficient communication with minimal wiring, making it ideal for space-constrained designs.  
This component features 8 quasi-bidirectional I/O pins, each configurable as an input or output without requiring a direction control register. The PCA9674PW operates at voltages ranging from 2.3V to 5.5V, ensuring compatibility with a wide range of logic levels. Its interrupt output pin notifies the host controller of input state changes, reducing the need for continuous polling and improving system efficiency.   With a built-in power-on reset function, the PCA9674PW ensures reliable initialization upon startup. Its low standby current consumption makes it suitable for power-sensitive applications. The device supports up to 8 addresses on the same I²C-bus, enabling expanded I/O capabilities in multi-device configurations.   Common applications include industrial control systems, consumer electronics, and embedded designs where additional I/O ports are needed without increasing microcontroller pin count. The PCA9674PW combines simplicity, performance, and reliability, making it a practical solution for modern electronic systems. |
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Application Scenarios & Design Considerations
Remote 8-bit I/O expander for Fm+ I虏C-bus with interrupt
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