Circuit and method for operating a circuit

  • US 8,193,792 B2
  • Filed: 06/09/2009
  • Issued: 06/05/2012
  • Est. Priority Date: 06/09/2008
  • Status: Active Grant
First Claim
Patent Images

1. A circuit comprising:

  • a first voltage regulator;

    a second voltage regulator; and

    a circuit section, the circuit section comprising a memory element and operable to;

    receive a supply voltage from the first voltage regulator when in an operating mode;

    transition from the operating mode to a sleep mode, the transition comprising deactivation of inputs of the circuit section; and

    receive a standby voltage from the second voltage regulator when in the sleep mode, the standby voltage being less than the supply voltage and sufficient to preserve an information item stored in the memory element.

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