For a project I am working on, I would like to give boards fresh from manufacturing a distinct "identity", before they are assigned a serial number, or have a MAC address or IP address programmed, etc.
This could be provided by some devices, such as Maxim's DS2411 "Silicon serial number" ( with a "Unique, Factory-Lasered and Tested
64-Bit Registration Number" ) or DS18B20 temperature sensor, ( "has a Unique 64-Bit Serial Code Stored in an On-Board ROM" )Looking for the least expensive chip with such an ID, with an I2C (preferred), SPI or 1-wire interface. Don't care what other functionality that chip may have, I just want the unique ID. A device that report its own serial number would be OK.
Any recommendations?
Thanks,
-- Roberto Waltman
[ Please reply to the group, return address is invalid ]