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LM89 - Remote Diode And Local Digital Temperature Sensor

General Description

The LM89 is an 11-bit digital temperature sensor with a 2-wire System Management Bus (SMBus) serial interface.

The LM89 accurately measures its own temperature as well as the temperature of an external device, such as processor thermal diode or diodeconnected transistor such as the 2N3904.

Key Features

  • 1 Accurately Senses Die Temperature of Remote ICs or Diode Junctions.
  • Offset Register Allows Accurate Sensing of a Variety of Thermal Diodes.
  • On-Board Local Temperature Sensing.
  • 10-Bit Plus Sign Remote Diode Temperature Data Format, 0.125°C Resolution.
  • T_CRIT_A Output Useful for System Shutdown.
  • ALERT Output Supports SMBus 2.0 Protocol.
  • SMBus 2.0 Compatible Interface, Supports.

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Datasheet Details

Part number LM89
Manufacturer Texas Instruments
File Size 1.07 MB
Description Remote Diode And Local Digital Temperature Sensor
Datasheet download datasheet LM89 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM89 SNIS128D – AUGUST 2002 – REVISED JUNE 2014 LM89 ±0.75°C Accurate, Remote Diode And Local Digital Temperature Sensor With Two-Wire Interface 1 Features •1 Accurately Senses Die Temperature of Remote ICs or Diode Junctions • Offset Register Allows Accurate Sensing of a Variety of Thermal Diodes • On-Board Local Temperature Sensing • 10-Bit Plus Sign Remote Diode Temperature Data Format, 0.125°C Resolution • T_CRIT_A Output Useful for System Shutdown • ALERT Output Supports SMBus 2.0 Protocol • SMBus 2.0 Compatible Interface, Supports TIMEOUT • 8-Pin VSSOP and SOIC Packages • Key Specifications: – Supply Voltage: 3.0 V to 3.