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Temperature measurement chip

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Temperature measurement chip

User-Definable Nonvolatile (NV) Alarm

Settings

Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits

Available in 8-Pin SO (150 mils), 8-Pin µSOP,and 3-Pin TO-92 Packages

Applications Include Thermostatic Controls,Industrial Systems, Consumer Products,Thermometers, or Any Thermally Sensitive

System

2 Byte User-Programmable EEPROM

ESD Rating: HBM8000V, MM800V

Product Detail
The QT18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points.
The QT18B20 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 QT18B20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply.
Each QT18B20 has a unique 64-bit serial code,which allows multiple QT18B20s to function on QT18B20 Programmable Resolution ,1-Wire Digital Thermometer,User-Definable Nonvolatile (NV) Alarm
Settings
Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits Available in 8-Pin SO (150 mils), 8-Pin µSOP, and 3-Pin TO-92 Packages
APPlications Include Thermostatic Controls,Industrial Systems, Consumer Products,Thermometers, or Any Thermally Sensitive
System

2 Byte User-Programmable EEPROM

ESD Rating: HBM8000V, MM800V

PIN CONFIGURATIONS
the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18B20s 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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    If you have any problem when using the website or our products, please write down your comments or suggestions, we will answer your questions as soon as possible!Thank you for your attention!