EMC1103(2007) Datasheet PDF - SMSC -> Microchip

General Description
   The EMC1103 is a one-wire sensor that is capable of monitoring up to three temperature zones for an Intel PC platform containing an SST host. The three temperature zones consist of an internal temperature diode and two externally connected temperature diodes. In cooperation with a host device, thermal management and fan control can be performed. Communication takes place over a one-wire SST based interface. The internal 11-bit delta-sigma ADC architecture provides superb linearity, high accuracy, and excellent noise immunity.

FEATUREs
◾ Single Wire Interface (SST based)
   — SST 1.0 compliant
   — Fixed Address, Discoverable Device
   — Nine programmable addresses
   — Supports FCS Abort functionality not available in SST
      0.9 compliant devices
◾ Resistance Error Correction
◾ Ideality Configuration
◾ Beta Compensation
◾ Two External Temperature Monitors
   — 0.125°C resolution
   — ±1°C Accuracy (50°C to 70°C)
   — Diode Fault Reporting
   — Second External Diode configured to read a discrete
      diode.
◾ Internal Temperature Monitor
   — Range -40°C to +125°C
   — 0.125°C resolution
   — ±2°C Accuracy (40°C to 70°C)
◾ Supply
   — 3.0V to 3.6V

APPLICATIONs
◾ Desktop PCs, Servers and Workstations