26 October 2016 User ReviewCheck your delivery options:
The DS18S20 digital thermometer provides 9-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18S20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. In addition, the DS18S20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply.
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 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
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)
Thermally Sensitive Systems