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19-6322; Rev 6/12
DS1821 Programmable Digital Thermostat and Thermometer
FEATURES
Requires no external components Unique 1-Wire® interface requires only one
port pin for communication Operates over a -55°C to +125°C (-67°F to
+257°F) temperature range Functions as a standalone thermostat with
user-definable trip-points Provides 8-bit (1°C resolution) centigrade
temperature measurements Accuracy is ±1°C over 0°C to +85°C range Converts temperature to a digital word in
1 second (max) Available in 3-pin TO92 and 8-pin SO
packages Applications include thermostatic controls,
industrial systems, consumer products, thermometers, or any thermally sensitive system
1-Wire is a registered trademark of Maxim Integrated Products, Inc.
DS1821 Datasheet
