Beskrivning
Digital Thermometer and Thermostat
The DS1620 Digital Thermometer and Thermostat provides 9bit temperature readings which indicate the temperature of the device. With three thermal alarm outputs, the DS1620 can also act as a thermostat. THIGH is driven high if the DS1620s temperature is greater than or equal to a userdefined temperature TH. TLOW is driven high if the DS1620s temperature is less than or equal to a userdefined temperature TL. TCOM is driven high when the temperature exceeds TH and stays high until the temperature falls below that of TL.
Features
* Requires no external components
* Supply voltage range covers from 2.7V to 5.5V
* Measures temperatures from -55°C to +125°C in 0.5°C increments
* Temperature is read as a 9-bit value
* Converts temperature to digital word in 750ms (max)
* Thermostatic settings are user-definable and nonvolatile
* Data is read from/written via a 3-wire serial interface (CLK, DQ, RST )
* Applications include thermostatic controls, industrial systems, consumer products, thermometers, or any thermally sensitive system