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MCU with power saving mode

  • US 20070079148A1
  • Filed: 09/30/2005
  • Published: 04/05/2007
  • Est. Priority Date: 09/30/2005
  • Status: Active Grant
First Claim
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1. A microcontroller unit, comprising:

  • a processor for generating a first control signal to start a comatose mode of operation for the microcontroller unit;

    control logic responsive to the first control signal for generating an enable signal at a first level and responsive to a second control signal for generating the enable signal at a second level; and

    a voltage regulator for generating a regulated voltage from an input voltage, the voltage regulator shutting down to provide a zero volt regulated voltage responsive to the enable signal at the first level and powering up to provide an regulated voltage at an operating level responsive to the enable signal at the second level.

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