The PCAL6524HEHP is a state-of-the-art, low-voltage 24-bit General Purpose Input/Output (GPIO) expander with interrupt and weak pull-up resistors, manufactured by NXP Semiconductors. This high-performance product is designed to provide a seamless extension for the input/output capabilities of any I²C-bus/SMBus compatible microcontroller.

Key Features

• High-Speed I²C Interface: With a fast-mode plus I²C interface, the PCAL6524HEHP supports speeds up to 1 MHz, allowing for quick communication with the host controller.
• 24 Programmable I/O Pins: The device offers 24 I/O pins that can be independently configured as an input or output, providing a versatile solution for expanding the number of I/Os available in a system.
• Interrupt Output: An interrupt output signals the host controller when an input state has changed, enabling prompt response to external events without the need for polling.
• Low Standby Current: Ideal for battery-powered applications, the PCAL6524HEHP is designed with power-saving in mind, featuring a very low standby current.
• Robust ESD Protection: The device is equipped with robust Electrostatic Discharge (ESD) protection, ensuring reliability and longevity in harsh electrical environments.

Applications

The PCAL6524HEHP is versatile and can be used in a wide range of applications, including:

• Server and telecom infrastructure
• Consumer electronics
• Industrial control systems
• Home automation
• Embedded systems requiring additional I/Os

Package and Quality

The PCAL6524HEHP comes in a space-saving TSSOP packaging, making it suitable for compact PCB layouts. NXP's commitment to quality ensures that each component meets high standards of performance and reliability, making the PCAL6524HEHP an excellent choice for designers looking to enhance their systems with additional I/O capabilities without compromising on space or power efficiency.