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LM78 Datasheet - National Semiconductor

LM78_NationalSemiconductor.pdf

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Datasheet Details

Part number:

LM78

Manufacturer:

National Semiconductor

File Size:

424.72 KB

Description:

Microprocessor system hardware monitor.

LM78, Microprocessor System Hardware Monitor

The LM78 is a highly integrated Data Acquisition system for hardware monitoring of servers, Personal Computers, or virtually any microprocessor based system.

In a PC, the LM78 can be used to monitor power supply voltages, temperatures, and fan speeds.

Actual values for these inputs can be read at an

LM78 Features

* n n n n n n n n n Temperature sensing 5 positive voltage inputs 2 op amps for negative voltage monitoring 3 fan speed monitoring inputs Input for additional temperature sensors Chassis Intrusion Detector input WATCHDOG comparison of all monitored values POST code storage RAM ISA and I2C™ Serial Bus

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