The Digital Thermometer Launched By Xinbolao Can Provide Temperature Measurement With 9 To 12 Bit Resolution, And Can Realize The Lower Limit And Upper Limit Alarm Of Temperature Through Programmable Non-Volatile Memory Unit. XBLW 18B20 Uses A Single Bus Protocol To Communicate With The Host Computer, Requiring Only One Signal Line And One Ground Wire. Its Temperature Measurement Range Is -55℃ ∽ +125℃ . The Test Accuracy Can Reach ±0.4℃ In The Range Of -10℃~+70℃. In Addition, It Can Work In Parasitic Mode And Directly Power The Chip Through The Signal Line, Eliminating The Need For An Additional Power Supply. Each XBLW 18B20 Has A Globally Unique 64-Bit Serial Number. Multiple XBLW 18B20s Can Be Connected In Series On The Same Single Bus For Networking . Only One Processor Is Needed To Control Multiple XBLWs Distributed In A Large Area. 18B20 .

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Main Features

• Using A Single Bus Interface Requires Only One Port Pin For Communication         

• At The Highest 12-Bit Accuracy, The Temperature Conversion Speed Is Less Than 400ms         

• Features User-Defined Non-Volatile Temperature Alarm Settings

• With Multi-Point Distributed Temperature Measurement Function                       

• Register Search Command To Identify And Identify Devices Exceeding Programmed Temperature

• No External Components Required                                

• Super Electrostatic Protection Capability: HBM 8000V MM 800V

• Can Be Powered Via Data Line; Supply Voltage Range Is 2.5V∽5.5V   

• Available In SMD MSOP8 Package And 3-Pin TO-90 Package

• Measurement The Measuring Range Is -55℃To+125℃(-67℉To+257℉)    

• Applications Include Temperature Control, Industrial Systems, Consumer Products, Grain Condition Thermometry, Thermometers Or Any Heat Sensing System

• The Accuracy Is ±0.4℃ In The Range Of -10℃ ∽ 70℃ 

• Temperature Resolution 9-12 Bits Optional

Package And Pin Definition

XBLW DS18B20 Internal Block Diagram

Power Supply Instructions

XBLW DS18B20 Strong Pull-Up Power Supply During Temperature Conversion (Parasitic Power Mode)

XBLW DS18B20 External Power Supply Mode

 XBLW DS18B20 Multi-Point Temperature Measurement Circuit

Examples Of Some Application Scenarios

Pharmaceutical Factory Warehousing

Refrigerated Storage Measurement

Water Temperature Detector

XBLW DS18B20 Is An Intelligent Integrated Digital Temperature Sensor With Excellent Performance, Easy Use And Good Consistency. The Multi-Point Temperature Measurement System Composed Of It Has High Measurement Accuracy, Good Stability, Simple Structure, Flexible Configuration, Low Cost And Easy Expansion. , Long Transmission Distance And Strong Anti-Interference Characteristics, It Has Very Broad Application Prospects In A Wide Range Of Temperature Multi-Point Monitoring Systems.