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18B20 Datasheet PDF

GXCAS 18B20

The GX18B20 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 GX18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor.
Part No. 18B20
Datasheet 18B20 Download
Manufacturer GXCAS
Description Programmable Resolution 1-Wire Digital Thermometer
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18B20 datasheet page 1 preview

DESCRIPTION

It has an operating temperature range of -55°C to +125°C and is accurate to ±0.4°C over the range of -10°C to +70°C. In addition, the GX18B20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each GX18B20 has a unique 64-bit serial code, which allows multiple GX18B20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many GX18B20s 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. Stored in an On-Board ROM
● Multidrop Capability Simplifies Distributed Temperature-Sensing

APPLICATIONS

● Requires No External Components
●Can Be Powered from Data Line; Power Supply Range is 2.5V to 5.5V
● Measures Temperatures from -55°C to +125°C (- 67°F to +257°F)
● ±0.4°C Accuracy from -10°C to +70°C
● Th...
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