DS1820 DS1820 1–WireTM Digital Thermometer FEATURES PIN ASSIGNMENT DALLAS DALLAS DS2434 DS1820 1 2 3 • Unique 1–WireTM interface requires only one port pin for communication • Multidrop capability simplifies distributed temperature sensing applications • Requires no external components • Can be powered from data line • Zero standby power required • Measures temperatures from –55°C to +125°C in 0.
5°C increments.
Fahrenheit equivalent is –67°F to +257°F in 0.
9°F increments BOTTOM VIEW 1 2 3 • Temperature is read as a 9–bit digital value.
• Converts temperature to digital word in 200 ms (typ.
) • User–definable, tings nonvolatile temperature alarm set- DS1820 PR35 PACKAGE See Mech.
Dra...

Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)