Abstract: The DS1631 ±0.5°C accuracy 2-wire digital temperature sensor is the next generation of Dallas Semiconductor's DS1621 temperature sensor IC. This application note is aimed at users interested in switching from the DS1621 to the DS1631. It describes the differences and similarities between the two parts including specification differences and DS1631 functions that allow software compatibility with the DS1621 but which are not documented in the DS1631 datasheet. The application note you have requested is available in Acrobat PDF format: APPLICATION NOTE 176: Using the DS1631 Temperature Sensor in DS1621 Applications (PDF, 118kB) A free Acrobat PDF reader is available from: http://www.adobe.com/products/acrobat/readstep.html Related Parts   APP 176: Apr 10, 2002 DS1621 Digital Thermometer and Thermostat Full Data Sheet (PDF, 248kB) Free Samples DS1631 High-Precision Digital Thermometer and Thermostat Full Data Sheet (PDF, 204kB) Free Samples Automatic Updates Would you like to be automatically notified when new application notes are published in your areas of interest? Sign up for EE-Mail™. We Want Your Feedback!   Download, PDF Format (118kB)  AN176, AN 176, APP176, Appnote176, Appnote 176