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Resistor-programmable device at low voltage

  • US 8,237,467 B2
  • Filed: 06/25/2010
  • Issued: 08/07/2012
  • Est. Priority Date: 06/25/2010
  • Status: Active Grant
First Claim
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1. A method comprising:

  • providing a drive signal to a specified one of multiple resistances via at least one switch, the drive signal based on a counter value that is output by a counter;

    generating a sense signal based on the drive signal using the specified resistance;

    determining if the sense signal passes a threshold;

    if the sense signal does not pass the threshold, changing the counter value that is output by the counter and repeating the providing, generating, and determining steps; and

    if the sense signal does pass the threshold, providing the counter value to a demultiplexer for storage in at least one register.

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