Product Overview: PCA9605D,118

The PCA9605D,118 is a high-performance, low-voltage 8-bit I/O expander designed by NXP Semiconductors. This versatile integrated circuit is crafted to provide a seamless extension of the I2C-bus for additional I/O capabilities. It is especially suitable for applications where there is a need to control numerous input and output operations without overwhelming the primary microcontroller.

Key Features

• I2C-Bus Interface: The PCA9605D,118 boasts an I2C-bus interface supporting both 400 kHz Fast-mode and 1 MHz Fast-mode Plus, which allows for high-speed communication with the host controller.
• 8-bit Remote I/O Ports: It contains eight programmable I/O ports, which can be configured as either inputs or outputs, providing flexibility in interfacing with other peripherals or systems.
• Low Standby Current: The device is optimized for low power consumption, with a very low standby current, making it ideal for battery-powered devices.
• Enhanced System Robustness: It features built-in power-on reset and voltage brown-out detection, ensuring reliable operation under fluctuating power conditions.
• Interrupt Output: An interrupt output is available, which can be configured to alert the host controller of changes on the input ports, reducing the need for constant polling.

Applications

The PCA9605D,118 is widely used in a variety of applications that require additional I/O ports without the need for a larger or more complex microcontroller. These applications include:

• Servers
• Personal computers
• Embedded systems
• Industrial control systems
• Consumer electronics

Package and Quality

The device is available in a small-outline package, specifically the SO16 variant, which ensures a compact footprint on the PCB. NXP's commitment to quality means that the PCA9605D,118 is manufactured to the highest standards, ensuring reliability and performance in demanding environments.