The PC87364, a member of National Semiconductor's 128pin LPC SuperI/O family, introduces wake-up support for a wide range of wake-up events, and new hardware and sofware features to protect the system design. The PC87364 provides support for 51 GPIO ports, many with Assert IRQ/SMI/PWUREQ capability. It is PC99 and ACPI compliant, and offers a single-chip solution to the most commonly used PC I/O peripherals.