General Description

The EMC1403 and EMC1404 are high accuracy, low cost, System Management Bus (SMBus) temperature sensors. Advanced features such as Resistance Error Correction (REC), Beta Compensation (to support CPU diodes requiring the BJT/transistor model including 45nm, 65nm and 90nm processors) and automatic diode type detection combine to provide a robust solution for complex environmental monitoring applications.

Features

■ Support for diodes requiring the BJT/transistor model

— supports 45nm, 65nm, and 90nm CPU thermal diodes.

■ Automatically determines external diode type and optimal settings

■ Resistance Error Correction

■ External Temperature Monitors

— ±1°C Accuracy (60°C < TDIODE < 100°C)

— 0.125°C Resolution

— Anti-parallel diodes for extra diode support

■ Internal Temperature Monitor

— ±2°C accuracy

■ 3.3V Supply Voltage

■ Programmable temperature limits for ALERT and THERM

■ Available in these RoHS Compliant Packages

— 10-pin 3mm x 3mm DFN

— 10-pin MSOP

— 14-pin SOIC

Applications

■ Notebook Computers

■ Desktop Computers

■ Industrial

■ Embedded applications