DS18B20 Function GND Ground pin, DQ data bus, VDD supply voltage 18B20 There are three forms of memory resources, they are: ROM read-only memory for storing DS18B20ID coding, the top eight single-family is encoded, followed by 48 is the chip serial number only, over the last eight is 56-bit CRC code. DS18B20 total of 64-bit ROM RAM data store, data loss after power-down, a total of 9 bytes, each byte 8-bit, 1, 2 bytes of temperature data converted value information, EEPROM non-volatile volatile memory for storage of long-term need to preserve data, upper and lower temperature alarm and calibration data

module Temperature.doc

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