EMC1412 Multiple Channel 1C Temperature Sensor with Beta Compensation Datasheet PRODUCT FEATURES General Description Applications Notebook Computers The EMC1412 is a high accuracy, low cost, System Desktop Computers Management Bus (SMBus) temperature sensor. Industrial Advanced features such as Resistance Error Correction Embedded applications (REC), Beta Compensation (to support CPU diodes requiring the BJT/transistor model including 45nm, Features 65nm and 90nm processors) and automatic diode type Programmable SMBus address detection combine to provide a robust solution for Support for diodes requiring the BJT/transistor model complex environmental monitoring applications. supports 45nm, 65nm, and 90nm CPU thermal diodes Automatically determines external diode type and The EMC1412 monitors two temperature channels (one optimal settings external and one internal). It provides 1C accuracy for Resistance Error Correction both external and internal diode temperatures. External Temperature Monitor 1C max accuracy (20C < T < 110C) DIODE Resistance Error Correction automatically eliminates the 0.125C resolution temperature error caused by series resistance allowing Supports up to 2.2nF diode filter capacitor greater flexibility in routing thermal diodes. Beta Internal Temperature Monitor Compensation eliminates temperature errors caused by 1C accuracy low, variable beta transistors common in today s fine 0.125C resolution geometry processors. The automatic beta detection 3.3V Supply Voltage feature monitors the external diode/transistor and Programmable temperature limits for ALERT and determines the optimum sensor settings for accurate THERM temperature measurements regardless of processor Available in small 8-pin 2mm x 3mm TDFN lead-free technology. This frees the user from providing unique RoHS compliant package sensor configurations for each temperature monitoring Available in small 8-pin MSOP lead-free RoHS application. These advanced features plus 1C compliant package measurement accuracy provide a low-cost, highly flexible and accurate solution for critical temperature monitoring applications. SMSC EMC1412 DATASHEET Revision 1.41 (02-23-12) Multiple Channel 1C Temperature Sensor with Beta Compensation Datasheet Ordering Information: SMBUS ORDERING NUMBER PACKAGE FEATURES ADDRESS EMC1412-A-ACZL-TR 8-pin MSOP Two temperature sensors, ALERT and Selectable via (lead-free RoHS compliant THERM pins, programmable SMBus address THERM pull-up EMC1412-A-AC3-TR 8-pin TDFN 2mm x 3mm Two temperature sensors, ALERT and Selectable via (lead-free RoHS compliant THERM pins, fixed SMBus address THERM pull-up EMC1412-1-ACZL-TR 8-pin MSOP Two temperature sensors, ALERT and 1001 100(r/w) (lead-free RoHS compliant THERM pins, fixed SMBus address EMC1412-1-AC3-TR 8-pin TDFN 2mm x 3mm Two temperature sensors, ALERT and 1001 100(r/w) (lead-free RoHS compliant THERM pins, fixed SMBus address EMC1412-2-ACZL-TR 8-pin MSOP Two temperature sensors, ALERT and 1001 101(r/w) (lead-free RoHS compliant THERM pins, fixed SMBus address REEL SIZE IS 4,000 PIECES FOR THE MSOP REEL SIZE IS 5,000 PIECES FOR THE TDFN This product meets the halogen maximum concentration values per IEC61249-2-21 For RoHS compliance and environmental information, please visit www.smsc.com/rohs 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000 or 1 (800) 443-SEMI Copyright 2012 SMSC or its subsidiaries. All rights reserved. Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC s standard Terms of Sale Agreement dated before the date of your order (theTerms of Sale Agreemen). The product may contain design defects or errors known as anomalies which may cause the product s functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSCs website at