DS18B20-SL+T&R

DS18B20-SL+T&R is a programmable resolution 1-wire digital thermometer. It provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with non-volatile user-programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. In addition, the DS18B20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on 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 HV AC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.

• Unique 1-Wire® interface requires only one port pin for communication
• Reduce component count with integrated temperature sensor and EEPROM
• Measures temperature range from -55°C to +125°C (-67°F to +257°F)
• ±0.5°C accuracy from -10°C to +85°C
• Simplifies distributed temperature-sensing applications with multidrop capability
• Flexible user-definable NV alarm settings with alarm search command
• Available in 3-pin TO-92 package

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