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DS1921G Dataheets PDF



Part Number DS1921G
Manufacturers Maxim Integrated
Logo Maxim Integrated
Description Thermochron iButton Device
Datasheet DS1921G DatasheetDS1921G Datasheet (PDF)

DS1921G EVALUATION KIT AVAILABLE Thermochron iButton Device General Description The Thermochron® iButton® device (DS1921G) is a rugged, self-sufficient system that measures temperature and records the result in a protected memory section. The recording is done at a user-defined rate, both as a direct storage of temperature values as well as in the form of a histogram. Up to 2048 temperature values taken at equidistant intervals ranging from 1 to 255min can be stored. The histogram provides 63 .

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DS1921G EVALUATION KIT AVAILABLE Thermochron iButton Device General Description The Thermochron® iButton® device (DS1921G) is a rugged, self-sufficient system that measures temperature and records the result in a protected memory section. The recording is done at a user-defined rate, both as a direct storage of temperature values as well as in the form of a histogram. Up to 2048 temperature values taken at equidistant intervals ranging from 1 to 255min can be stored. The histogram provides 63 data bins with a resolution of 2.0°C. If the temperature leaves a userprogrammable range, the DS1921G also records when this happened, for how long the temperature stayed outside the permitted range, and if the temperature was too high or too low. An additional 512 bytes of batterybacked SRAM allow storing information pertaining to the object to which the DS1921G is associated. Data is transferred serially through the 1-Wire® protocol, which requires only a single data lead and a ground retu.


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