NXP Semiconductors

PCA8575BQ,118  

I/O Expanders

PCA8575BQ,118 Description

The PCA8575BQ,118 is a 16-bit I/O expander designed for general-purpose applications, featuring an I2C interface. Manufactured by NXP Semiconductors, this device is ideal for expanding the number of available I/O ports in embedded systems. Despite its obsolete status, it remains a reliable choice for applications requiring a robust and efficient I/O expansion solution.

PCA8575BQ,118 Features

• I2C Interface: The PCA8575BQ,118 communicates via an I2C interface, supporting a clock frequency of up to 400 kHz. This high-speed communication capability ensures efficient data transfer and minimal latency.
• 16-bit I/O Ports: With 16 general-purpose I/O ports, this expander significantly increases the number of control and monitoring points in a system.
• Power-On Reset (POR): The built-in POR feature ensures that the device initializes to a known state upon power-up, enhancing system reliability and stability.
• Interrupt Output: The device includes an interrupt output, allowing it to signal the microcontroller or microprocessor when specific events occur, optimizing system responsiveness.
• Supply Voltage Range: The PCA8575BQ,118 operates within a wide supply voltage range of 2.3V to 5.5V, providing flexibility in system design and compatibility with various power supplies.
• Output Current Capability: Each I/O port can source up to 100µA and sink up to 25mA, making it suitable for driving a variety of loads, including LEDs and small actuators.
• Surface Mount Packaging: The device is available in a surface mount package, facilitating easy integration into compact and high-density PCB designs.
• Compliance and Standards: The PCA8575BQ,118 is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards for electronics manufacturing.

PCA8575BQ,118 Applications

The PCA8575BQ,118 is well-suited for a range of applications where I/O expansion is required. Some specific use cases include:

• Embedded Systems: Enhancing the I/O capabilities of microcontrollers in embedded systems, such as home automation controllers, industrial control panels, and IoT devices.
• Consumer Electronics: Expanding the control and monitoring functions in consumer electronics, such as smart appliances and wearable devices.
• Automotive Applications: Providing additional I/O ports for automotive electronic control units (ECUs) to manage various sensors and actuators.
• Industrial Automation: Facilitating the connection of multiple sensors and actuators in industrial automation systems, improving control and monitoring efficiency.

Conclusion of PCA8575BQ,118

The PCA8575BQ,118, despite being obsolete, remains a valuable component for applications requiring robust I/O expansion. Its high-speed I2C interface, extensive I/O capabilities, and wide supply voltage range make it a versatile solution for various embedded systems. The inclusion of features such as Power-On Reset and interrupt output further enhances its reliability and functionality. For designers seeking a reliable and efficient I/O expander, the PCA8575BQ,118 is a worthy consideration.

PCA8575BQ,118 Documents

Download datasheets and manufacturer documentation for PCA8575BQ,118

Datasheets :

PCA8575      

PCN Packaging :

All Dev Label Update 15/Dec/2020      

Scheme-It :

PCA8575BQ Scheme-It®      

PCN Obsolescence/ EOL :

Multiple Devices 25/Dec/2013      

HTML Datasheet :

PCA8575      

Environmental Information :

NXP USA Inc REACH       NXP USA Inc RoHS Cert