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LM80 - Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor

Description

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.

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.

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LM80 Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor June 1999 LM80 Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor General Description 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 Chassis Intrusion input is provided to monitor and reset an external circuit designed to latch a chassis intrusion event. The LM80 is especially suited to interface to both linear and digital temperature sensors. The 10 mV LSB and 2.
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