Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 25, 2011
Patent Application Number
11935639
Date Filed
November 6, 2007
Patent Primary Examiner
Patent abstract
A semiconductor device of the present invention comprises a first step-down voltage circuit to generate a first step-down voltage lower than an externally-supplied power supply voltage, and a second step-down voltage circuit to generate a second step-down voltage lower than the first step-down voltage. The first step-down voltage circuit has a withstand voltage no lower than the power supply voltage and the second step-down voltage circuit has a withstand voltage no lower than the first step-down voltage.
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