Product Overview: PCA9574HR,115

The PCA9574HR,115 is a robust remote 8-bit I/O expander designed and manufactured by NXP Semiconductors, a leader in the field of high-performance mixed-signal electronics. This component is part of the PCA9574 series, which is known for its ability to enhance the I/O capabilities of microcontrollers with a minimal number of pins, using a two-wire bidirectional I²C-bus and SMBus serial interface.

Key Features

• I²C Interface: The PCA9574HR,115 operates at clock frequencies up to 400 kHz, making it compatible with standard I²C protocols and ensuring seamless integration with most microcontrollers.
• 8-bit I/O Ports: It offers eight programmable I/O pins that can be used for input or output, providing flexibility for a wide range of applications.
• Low Standby Current: This device is optimized for low power consumption, with a typical standby current of only 2 µA, which is ideal for battery-powered and energy-efficient systems.
• Interrupt Output: An interrupt output is available to alert the host microcontroller of any input state change, reducing the need for continuous polling and thus saving processor resources.
• Polarity Inversion: Input port polarity is programmable, allowing for easy adaptation to different logic levels or signal conditions.

Applications

The PCA9574HR,115 is versatile and can be used in a diverse range of electronic systems, including:

• Servers
• Personal Electronics
• Industrial Control Systems
• Home Automation
• Medical Equipment

Technical Specifications

With an operating voltage range of 2.3V to 5.5V, the PCA9574HR,115 is suitable for various power environments. Its wide temperature range from -40°C to +85°C ensures reliable operation under extreme conditions. The device comes in a small 16-pin TSSOP package, which is space-efficient and ideal for compact PCB layouts.

Quality and Reliability

NXP's commitment to quality is evident in the PCA9574HR,115, which is designed to meet stringent industry standards for performance and reliability. Whether you're developing for consumer electronics or industrial applications, this I/O expander is an excellent choice for expanding the functionality of your microcontroller-based systems.