NXP Semiconductors Tariff Inquiry

PCA8574PW,112

PCA8574PW,112 Description

The PCA8574PW,112 is an 8-bit I/O expander designed for I2C bus applications, manufactured by NXP Semiconductors. This Interface IC Chip is part of the PCA85 family and is housed in a 16-TSSOP package. It operates with a clock frequency of 400 kHz, making it suitable for a wide range of applications requiring efficient data communication and control. The PCA8574PW,112 supports a supply voltage range of 2.3V to 5.5V, providing flexibility in power supply requirements.

The device features 8 programmable I/O lines, each capable of sourcing or sinking up to 25mA, with a typical output current of 100µA. This makes it ideal for driving LEDs, controlling relays, or interfacing with various sensors and actuators. The PCA8574PW,112 also includes an interrupt output, enhancing its functionality for real-time applications.

PCA8574PW,112 Features

• I2C Interface: The PCA8574PW,112 utilizes the I2C bus protocol, allowing for efficient communication with microcontrollers and other digital devices. This protocol supports multiple devices on the same bus, reducing the number of pins required for I/O expansion.
• 8 Programmable I/O Lines: Each I/O line can be individually configured as an input or output, providing flexibility in system design. The ability to source or sink up to 25mA per line makes it suitable for driving various loads.
• Interrupt Output: The inclusion of an interrupt output allows the device to signal the microcontroller when a specific event occurs, such as a change in input state, enhancing real-time responsiveness.
• Power-On Reset (POR): The device features a Power-On Reset function, ensuring a known state upon power-up, which simplifies system initialization and improves reliability.
• Wide Operating Voltage Range: The PCA8574PW,112 operates within a supply voltage range of 2.3V to 5.5V, making it compatible with a variety of power supply configurations.
• Surface Mount Technology (SMT): The device is designed for surface mount applications, facilitating automated assembly processes and reducing the overall footprint on the PCB.
• RoHS3 Compliant: The PCA8574PW,112 meets the RoHS3 compliance standards, ensuring it is free from hazardous substances and suitable for environmentally conscious designs.
• REACH Unaffected: The device is unaffected by the REACH regulations, further ensuring its compliance with environmental and safety standards.

PCA8574PW,112 Applications

The PCA8574PW,112 is well-suited for applications requiring efficient I/O expansion and control. Some specific use cases include:

• Embedded Systems: Ideal for expanding the I/O capabilities of microcontrollers in embedded systems, allowing for additional sensors, actuators, and indicators.
• Industrial Automation: Used in industrial control systems to manage multiple I/O lines, enabling the control of relays, switches, and other devices.
• Consumer Electronics: Suitable for consumer electronics where compact design and efficient power management are critical, such as in smart home devices and portable electronics.
• Automotive Applications: The device's robustness and wide operating voltage range make it suitable for automotive applications, where it can be used to control various electronic components and systems.
• LED Control: The ability to source or sink up to 25mA per I/O line makes it ideal for driving LEDs in lighting applications, providing a simple and effective solution for LED control.

Conclusion of PCA8574PW,112

The PCA8574PW,112 is a versatile and efficient I/O expander designed for I2C bus applications. Its wide operating voltage range, programmable I/O lines, and interrupt output make it a reliable choice for a variety of applications. The device's surface mount technology and RoHS3 compliance ensure it is suitable for modern, environmentally friendly designs. While the PCA8574PW,112 is marked as obsolete, its robust features and compatibility with various systems make it a valuable component for existing and legacy designs.