The PC87366, a member of National Semiconductor's 128-pin LPC SuperI/O family, combines National's System Hardware Monitoring capability with a Musical Instrument Digital Interface (MIDI) Port and game port inputs for up to two joysticks. The PC87366 is PC99 and ACPI compliant, and offers a singlechip solution to the most commonly used PC I/O peripherals. System Hardware Monitoring provides minimum power consumption and maximum operating efficiency within the system environment. It integrates National's diode-based or thermistorbased Temperature Sensor (TMS) with National's Voltage Level Monitor (VLM) for full, PC system thermal control. The PC87366 monitors system voltages using 8-bit Analog to Digital (A/D) conversion with seven analog input channels and four internal measuring points.