The PCA9535D,118 is a robust, low-voltage 16-bit I²C-bus and SMBus I/O expander designed and manufactured by NXP Semiconductors. This versatile device is engineered to provide general-purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I²C).

Key Features

• Interface: I²C-bus to parallel port expander.
• Operating Voltage: 2.3V to 5.5V, accommodating a wide range of applications.
• Ports: 16-bit I/O port functionality, split into two 8-bit ports (Port 0 and Port 1).
• Polarity Inversion: Input port polarity inversion to simplify software control.
• Output Configuration: Configurable as either open-drain or push-pull outputs.
• Interrupt Output: Active LOW interrupt output for input change notification, enhancing system responsiveness.

Applications

The PCA9535D,118 is suitable for a wide range of applications, including but not limited to server infrastructure, industrial control systems, robotics, and consumer electronics. Its ability to operate over a wide voltage range and its low power consumption make it ideal for battery-operated devices.

Package and Quality

Encased in a space-saving SOIC-24 package, the PCA9535D,118 is designed for surface-mount technology, making it suitable for compact PCB layouts. NXP's commitment to quality ensures that this I/O expander meets stringent industry standards, providing reliable performance in various operating conditions.

Additional Resources

For more detailed information, designers and engineers can access comprehensive datasheets, application notes, and support resources on the NXP Semiconductors website. Reference designs and development tools are also available to facilitate rapid integration into existing and new projects.