深圳市政鸿微电子有限公司优势供应美信温度传感器:ds18b20z
description
the ds18b20 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 ds18b20 communicates over a
1wire 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 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
1wire 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, e, or machinery, and process monitoring and control systems.
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DS18B20Z,美信温度传感器