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18B20 - Programmable Resolution 1-Wire Digital Thermometer

Datasheet Summary

Description

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.

Features

  • 1-Wire Interface Requires Only One Port Pin for Communication.
  • Each Device has a Unique 64-Bit Serial Code PIN.

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Datasheet preview – 18B20

Datasheet Details

Part number 18B20
Manufacturer GXCAS
File Size 1.38 MB
Description Programmable Resolution 1-Wire Digital Thermometer
Datasheet download datasheet 18B20 Datasheet
Additional preview pages of the 18B20 datasheet.

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Full PDF Text Transcription

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GX18B20 GXCAS Technology 18B20 Programmable Resolution 1- Wire Digital Thermometer DESCRIPTION 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. 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.
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