LM80 Datasheet - National Semiconductor

LM80 Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor

The LM80 provides 7 positive voltage inputs, temperature measurement, fan speed measurement, and hardware monitoring on an I2C™ interface. The LM80 performs WATCHDOG™ comparisons of all measured values and an open-drain interrupt output becomes active when any values exceed programmed limits. A Chas.

LM80 Features

* Temperature sensing 7 positive voltage inputs 2 programmable fan speed monitoring inputs 10 mV LSB and 2.56V input range accepts outputs from linear temperature sensors such as the LM50 n Chassis Intrusion Detector input n n n n Applications n System Thermal and Hardware Monitoring for Servers and

LM80 Datasheet