Abstract: This application introduces the user to simple 1-Wire software for interfacing a microcontroller to the DS18B20, DS18S20 and DS1822 1-Wire temperature sensors. For example purposes in the article, the DS5000 (8051 compatible) microcontroller is used. Software examples are given that illustrate the implementation of delay, reset, read bit, write bit, read byte, write byte, ROM search, CRC, read temperature and read scratch pad routines. The application note you have requested is available in Acrobat PDF format: APPLICATION NOTE 162: Interfacing the DS18X20/DS1822 1-Wire Temperature Sensor in a Microcontroller Environment (PDF, 193kB) A free Acrobat PDF reader is available from: http://www.adobe.com/products/acrobat/readstep.html We Want Your Feedback! 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™. More Information   APP 162: Mar 08, 2002 DS1822 Econo 1-Wire Digital Thermometer Full Data Sheet (PDF, 228kB) Free Samples DS1822-PAR Econo Parasite-Power Digital Thermometer Full Data Sheet (PDF, 212kB) DS18B20 Programmable Resolution 1-Wire Digital Thermometer Full Data Sheet (PDF, 188kB) Free Samples DS18B20-PAR 1-Wire Parasite-Power Digital Thermometer Full Data Sheet (PDF, 208kB) DS18S20 1-Wire Parasite-Power Digital Thermometer Full Data Sheet (PDF, 188kB) Free Samples DS18S20-PAR Parasite-Power Digital Thermometer Full Data Sheet (PDF, 264kB)   Download, PDF Format (193kB)  AN162, AN 162, APP162, Appnote162, Appnote 162