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Part Number
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LM40 |
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Manufacturer
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National Semiconductor |
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Description
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Hardware Monitor |
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Published
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Mar 22, 2005 |
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Detailed Description
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LM40 Hardware Monitor with Dual Thermal Diodes and SensorPath™ Bus
May 2004
LM40 Hardware Monitor with Dual Thermal Di...
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Datasheet
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LM40
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Overview
LM40 Hardware Monitor with Dual Thermal Diodes and SensorPath™ Bus
May 2004
LM40 Hardware Monitor with Dual Thermal Diodes and SensorPath™ Bus
General Description
The LM40 is a hardware monitor that measures 3 temperature zones, 5 voltages and has a single-wire interface compatible with National Semiconductor’s SensorPath bus.
SensorPath data is pulse width encoded, thereby allowing the LM40 to be easily connected to many general purpose micro-controllers.
Several National Semiconductor Super I/O products include a fully integrated SensorPath master, that when connected to the LM40 can realize a hardware monitor function that includes limit checking for measured values, autonomous fan spee...
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