LM80 Overview
The LM80 provides 7 positive voltage inputs, temperature measurement, fan speed measurement, and hardware monitoring on an I2C interface. The LM80 performs WATCHDOG parisons of all measured values and an open-drain interrupt output bees 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.
LM80 Key Features
- 2 Temperature Sensing
- 7 Positive Voltage Inputs
- 2 Programmable Fan Speed Monitoring Inputs
- 10 mV LSB and 2.56V Input Range Accepts
- Chassis Intrusion Detector Input
- WATCHDOG parison of all Monitored Values
- Separate Input to Show Status in Interrupt Status Register of Additional External Temperature Sensors such as the LM56 o
- I2C Serial Bus Interface patibility
- Shutdown Mode to Minimize Power Consumption
- Programmable RST_OUT/OS pin: RST_OUT Provides a Reset Output; OS Provides an Interrupt Output Activated by an Overtemper
LM80 Applications
- System Thermal and Hardware Monitoring for Servers and PCs

