Editing 1-Wire (section)

== ROM family codes ==
Every 1-Wire device’s 64-bit ROM ID ends with an 8-bit family code.  
In most cases this byte is assigned to a single part number, so reading it from the bus is usually enough to identify the device—for example, 0x10 (DS18S20 thermometer),<ref>{{cite web |title=DS18S20 – High-Precision 1-Wire Digital Thermometer (datasheet) |url=https://www.analog.com/media/en/technical-documentation/data-sheets/ds18s20.pdf |website=Analog Devices |access-date=2025-04-25}}</ref> 0x01 (DS2401 silicon serial number),<ref>{{cite web |title=DS2401 – Silicon Serial Number (datasheet) |url=https://www.analog.com/media/en/technical-documentation/data-sheets/ds2401.pdf |website=Analog Devices |access-date=2025-04-25}}</ref> or 0x2D (DS2431 1 kbit EEPROM).<ref>{{cite web |title=DS2431 – 1024-Bit 1-Wire EEPROM (datasheet) |url=https://www.analog.com/DS2431/datasheet |website=Analog Devices |access-date=2025-04-25}}</ref>

Various people have created online databases of family codes from the broad range of 1-Wire memory, authenticator, ID, and battery-monitor devices.<ref>{{cite web |title=1-Wire Family Code Database |url=https://jumtee.com/1-wire-family-code-database |website=Jumtee Security |access-date=2025-04-25}}</ref>