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Circuit for generating an identification code for an IC

  • US 7,210,634 B2
  • Filed: 02/12/2004
  • Issued: 05/01/2007
  • Est. Priority Date: 02/12/2004
  • Status: Expired due to Fees
First Claim
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1. An integrated circuit (IC) comprising:

  • an ID generating circuit for generating a binary identification code (ID) having a plurality of bits, wherein a state of each bit of the plurality of bits is determined by random process variation in material forming the IC;

    a non-volatile memory; and

    a control circuit for responding to a write cue event by writing the ID generated by the ID generating circuit into the non-volatile memory.

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