Part LM81
Description Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor
Manufacturer Texas Instruments
Size 1.76 MB
Texas Instruments
LM81

Overview

The LM81 is a highly integrated data acquisition system for hardware monitoring of servers, Personal Computers, or virtually any microprocessor-based system. In a PC, the LM81 can be used to monitor power supply voltages, temperatures, and fan speeds.

  • 2 Temperature Sensing
  • 6 Positive Voltage Inputs with Scaling Resistors to Monitor +5V, +12V, +3.3V, +2.5V, Vccp Power Supplies Directly
  • 8-Bit DAC Output for Controlling Fan Speed
  • 2 Fan Speed Monitoring Inputs
  • Chassis Intrusion Detector Input
  • WATCHDOG Comparison of all Monitored Values
  • SMBus 1.0 (LM81C) and 1.1 (LM81B) Serial Bus Interface Compatibility
  • LM81B has Improved Voltage Monitoring Accuracy
  • VID0-VID4 Monitoring Inputs