ON Semiconductor CAT9554WI-GT2 Product Overview

The CAT9554WI-GT2 is a high-performance, 16-bit I/O expander from ON Semiconductor, designed to provide a simple solution to increase the I/O capabilities of any I²C-compatible microcontroller. With its robust design and versatile functions, this product is ideal for a wide range of applications, including mobile devices, industrial control, and automotive systems, where additional I/Os are necessary.

Key Features

• I²C Interface: The CAT9554WI-GT2 communicates via a fast I²C interface, supporting serial clock frequencies up to 400 kHz, which allows for quick communication with the host controller.
• 16-bit I/O Ports: It extends the I/O capabilities by adding 16 programmable I/O pins, which can be individually set to input or output, providing flexibility for various application requirements.
• Interrupt Output: An interrupt output pin is provided to signal the host microcontroller when an input state has changed, enhancing system responsiveness without the need for constant polling.
• Configurable Polarity: Input polarity inversion registers allow users to configure the polarity of the input ports, making it easier to adapt to different logic levels.
• Low Standby Current: Designed for power-sensitive applications, the CAT9554WI-GT2 offers a low standby current, reducing the overall power consumption of the system it is integrated into.

Applications

The CAT9554WI-GT2 is versatile enough to be used in a multitude of applications, including but not limited to:

• Expanding I/Os for microcontrollers with limited GPIOs
• Server infrastructure and networking equipment
• Industrial automation and process control systems
• Automotive controls and infotainment systems
• Portable electronics and battery-powered devices

Product Specifications

The device is packaged in a compact TSSOP-24 package, making it suitable for space-constrained applications. It operates over a wide temperature range from -40°C to +85°C, ensuring reliability and performance under extreme conditions.

With the CAT9554WI-GT2, ON Semiconductor continues its commitment to providing innovative solutions that enhance the functionality and efficiency of electronic systems. This I/O expander is a testament to the company's dedication to quality and performance, making it a top choice for designers looking to optimize their microcontroller-based projects.