NXP Semiconductors Tariff Inquiry

PCA8574N,112

PCA8574N,112 Description

The PCA8574N,112 is a versatile I/O expander designed by NXP Semiconductors, a leading manufacturer in the electronics industry. This device is an 8-bit I/O expander with an I2C interface, capable of operating at a clock frequency of up to 400 kHz. It is housed in a through-hole package, specifically a 16DIP, making it suitable for applications requiring robust mechanical stability and ease of integration into existing systems.

Key technical specifications include a supply voltage range of 2.3V to 5.5V, ensuring compatibility with a wide range of power sources. The device features a current output source/sink capability of 100µA and 25mA, respectively, providing sufficient power for various peripheral devices. Additionally, the PCA8574N,112 includes an interrupt output, which enhances its functionality by allowing it to signal the microcontroller when an input changes state.

PCA8574N,112 Features

The PCA8574N,112 stands out due to its unique features and performance benefits:

• Power-On Reset (POR): Ensures a reliable reset of the device upon power-up, eliminating the need for additional reset circuitry.
• Interrupt Output: Facilitates efficient communication with the microcontroller by signaling changes in input states, reducing the need for continuous polling.
• Wide Operating Voltage Range: The 2.3V to 5.5V supply voltage range provides flexibility in system design, accommodating various power supply configurations.
• Low Power Consumption: With a maximum current consumption of 100µA in source mode and 25mA in sink mode, the device is energy-efficient, making it suitable for battery-powered applications.
• I2C Interface: The I2C interface allows for simple and efficient communication with the host microcontroller, reducing the number of pins required for I/O expansion.
• Through-Hole Mounting: The through-hole package ensures mechanical stability and ease of integration into existing systems, making it ideal for industrial and embedded applications.

PCA8574N,112 Applications

The PCA8574N,112 is well-suited for a variety of applications, including:

• Embedded Systems: Ideal for expanding I/O capabilities in microcontroller-based systems, enabling the connection of additional sensors, actuators, and peripherals.
• Industrial Automation: Provides a reliable and efficient solution for expanding I/O in industrial control systems, enhancing the functionality of PLCs and other automation devices.
• Consumer Electronics: Enhances the I/O capabilities of consumer devices, such as smart home controllers, by allowing the connection of multiple peripherals with minimal pin usage.
• Automotive Applications: Suitable for automotive systems where robustness and reliability are paramount, such as in-vehicle infotainment systems and electronic control units.

Conclusion of PCA8574N,112

The PCA8574N,112 is a robust and versatile I/O expander that offers significant advantages over similar models. Its wide operating voltage range, low power consumption, and I2C interface make it an ideal choice for a variety of applications, from embedded systems to industrial automation. The inclusion of an interrupt output and power-on reset further enhances its functionality, ensuring reliable operation and efficient communication with the host microcontroller. Despite its obsolete status, the PCA8574N,112 remains a valuable component for designers seeking a reliable and efficient I/O expansion solution.