General Description

The EMC1063 is a family of System Management Bus (SMBus) temperature sensors that monitors three temperature zones, one internal diode and two externally connected diodes. The EMC1063 is specifically designed to operate with AMD processor diodes. Alternately, the External Diode 2 channel can be configured to measure a standard thermal diode (such as a 2N3904) with Resistive Error Correction active.

Features

■ Designed to Operate with AMD Processor Diodes

■ Supports two External Temperature Diodes

— ±1°C Accuracy (40°C to 80°C)

— 0.125°C Resolution

— Ideality Factor Configuration

— Accepts 2200pF Cap Across External Diodes for Noise Suppression

— Optional Resistive Error Correction on External Diode 2

■ Internal Temperature Diode

— ±3°C Accuracy (0°C to 85°C)

— 0.125°C Resolution

■ Low Power Operation

— 4uA Standby Current

■ 3.0V to 3.6V Supply

■ Programmable Conversion Rate

■ SMBus 2.0 Compliant

— Four SMBus Address Available

■ Reports Hotter of Two Diodes with Dual-core CPU

Applications

■ Desktop and Notebook Computers

■ Hardware Management

■ Servers

■ Embedded Applications