DS1820
DS1820 Temperature Sensor
- Unique 1–Wire interface requires only one port pin for communication
- Multidrop capability simplifies distributed temperature sensing applications
- Requires no external components
- Can be powered from the data line
- Zero standby power required
- Measures temperatures from –55° C to +125° C in 0.5° C increments.
- Temperature is read as a 9–bit digital value.
- Converts temperature to digital word in 200 ms (Typ.)
- User-definable, nonvolatile temperature alarm settings
- Alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition)