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1,886 bytes added ,  09:20, 29 April 2019
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# Thermally sensitive system – receive alerts when temperature enters or leaves pre-defined value.
 
# Thermally sensitive system – receive alerts when temperature enters or leaves pre-defined value.
 
# Consumer products – be assured that goods which you are delivering will maintain high quality.
 
# Consumer products – be assured that goods which you are delivering will maintain high quality.
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'''Description'''
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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. It has an operating temperature range of –55°C to +125°C and is accurate to ±0.5°C over the range of –10°C to +85°C. In addition, the DS18S20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each DS18S20 has a unique 64-bit serial code, which allows multiple DS18S20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18S20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.
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'''TTJ technical characteristics'''
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* Unique 1-Wire® Interface Requires Only One Port Pin for Communication
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* Each Device has a Unique 64-Bit Serial Code Stored in an On-Board ROM
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* Multidrop Capability Simplifies Distributed Temperature Sensing Applications
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* Requires No External Components
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* Can Be Powered From Data Line. Power Supply Range is 3.0V to 5.5V
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* Measures Temperatures from -55°C to +125°C (-67°F to +257°F) ±0.5°C Accuracy from -10°C to +85°C
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* 9-Bit Thermometer Resolution
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* Converts Temperature in 750ms (max)
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* User-Definable Nonvolatile (NV) AlarmSettings
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* Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits (Temperature Alarm Condition)
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* Applications Include Thermostatic Controls, Industrial Systems, Consumer Products, Thermometers, or Any Thermally Sensitive System