EMCT03 1°C Triple SMBus Temperature Sensor Data Brief General Description Features The EMCT03 is a System Management Bus (SMBus) temperature sensor that is capable of monitoring three temperature zones for a PC or embedded environment. The three temperature zones consist of two external and one internal temperature diode. The internal 11 bit sigma-delta ADC architecture with digital filtering attributes to superb linearity and immunity to interference and noise. An extended temperature format may be selected for compatibility with a broad range of CPUs. Selectable conversion rates and standy mode support low-power operation. ■ — Programmable conversion rate — < 1mA at 16 Conversions per Second — < 3uA in Standy Mode ■ ■ ■ ■ ■ Desktop and Notebook Computers Thermostats Smart batteries Industrial / Automotive SMBus 2.0 Compliant interface Two External Temperature Monitors: — — — — ■ Range -64°C to +191°C 0.125°C resolution ±1°C Accuracy 40°C to 80°C Diode Fault Reporting Internal Temperature Monitor — Range 0°C to +85°C — 0.125°C resolution — ±3°C Accuracy 0°C to 85°C Applications ■ Low Power; 3.0V to 3.6V Supply ■ ■ Programmable Conversion Rate MSOP-8 3x3mm Package Simplified Block Diagram EMCT03 Switching Current Configuration Register Analog Mux DN1 DP2 11-bit Sigma Delta ADC Remote Temp Register 2 Digital Mux and Byte Interlock DN2 Local Temp Diode Local Temp Register SMCLK Status Register SMSC EMCT03 PRODUCT PREVIEW SMBus Interface Remote Temp Register 1 DP1 SMDATA Revision 2.1 (09-03-04) 1°C Triple SMBus Temperature Sensor Package Outline Figure 1 8-Pin MSOP Package Outline - 3x3mm Body 0.65mm Pitch Table 1 8-Pin MSOP Package Parameters MIN NOMINAL MAX REMARKS A 0.80 ~ 1.10 Overall Package Height A1 0.05 ~ 0.15 Standoff A2 0.75 0.85 0.95 Body Thickness D 2.80 3.00 3.20 X Body Size E 4.65 4.90 5.15 Y Span E1 2.80 ~ 3.20 Y body Size H 0.08 ~ 0.23 Lead Foot Thickness L 0.40 ~ 0.80 Lead Foot Length L1 0.95 REF e Lead Length 0.65 BSC Lead Pitch θ 0o ~ 8o Lead Foot Angle W 0.22 ~ 0.38 Lead Width ccc ~ ~ 0.10 Coplanarity Notes: 1. Controlling Unit: millimeters. 2. Tolerance on the true position of the leads is ± 0.065 mm maximum. 3. Package body dimensions D and E1 do not include mold protrusion or flash. Dimensions D and E1 to be determined at datum plane H. Maximum mold protrusion or flash is 0.15mm (0.006 inches) per end, and 0.15mm (0.006 inches) per side. 4. Dimension for foot length L measured at the gauge plane 0.25 mm above the seating plane. 5. Details of pin 1 identifier are optional but must be located within the zone indicated. Revision 2.1 (09-03-04) 2 PRODUCT PREVIEW SMSC EMCT03 1°C Triple SMBus Temperature Sensor ORDER NUMBER(S): EMCT03-ACZB for 8-pin MSOP package EMCT03-ACZB-TR for 8-pin MSOP package (Tape and Reel) EMCT03-ACZL for 8-pin MSOP package (Lead Free) EMCT03-ACZL-TR for 8-pin MSOP package (Lead Free, Tape and Reel) Evaluation Board Available upon request. 80 Arkay Drive Hauppauge, NY 11788 (631) 435-6000 FAX (631) 273-3123 Copyright © SMSC 2004. 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 (the "Terms of Sale Agreement"). 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 SMSC’s website at http://www.smsc.com. SMSC is a registered trademark of Standard Microsystems Corporation (“SMSC”). Product names and company names are the trademarks of their respective holders. SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND ALL WARRANTIES ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON CONTRACT; TORT; NEGLIGENCE OF SMSC OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR NOT ANY REMEDY OF BUYER IS HELD TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SMSC EMCT03 3 PRODUCT PREVIEW Revision 2.1 (09-03-04)