DS1721 2-Wire Digital Thermometer and Thermostat www.
dalsemi.
com FEATURES Temperature measurements require no external components with ±1°C accuracy Measures temperatures from -55°C to +125°C; Fahrenheit equivalent is -67°F to +257°F Temperature resolution is configurable from 9 to 12 (default) bits (0.
5°C to 0.
0625°C resolution) Maximum conversion time (9-bit resolution) of 150 ms Thermostatic settings are user-definable Data is read/written via a 2-wire serial interface (open drain I/O lines); 3-bit addressability Wide power supply range (2.
7V - 5.
5V) Applications include personal computers, cellular telephones, office equipment, or any thermally sensitive system 8-pin, 150-mil SOIC packa...

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