Integrated circuit with embedded identification code

摘要

An integrated circuit ( 100 ) has a plurality of inputs ( 110 ) and a plurality of outputs ( 120 ). In a test mode, a test arrangement including a plurality of logic gates ( 140 ) is coupled between the plurality of inputs ( 110 ) and the plurality of outputs ( 120 ). The logic gates from the plurality of logic gates ( 140 ) have a first input coupled to an input of the plurality of inputs ( 110 ) and a further input coupled to a fixed logic value source ( 150 ). The fixed logic value source ( 150 ) is used to define an identification code of the integrated circuit ( 100 ), which can be retrieved at the plurality of outputs ( 120 ) when an appropriate bit pattern is fed to the plurality of inputs ( 110 ).