Patent ID: 7579903
Filing Date: 2009-08-25
Classification: G11C

Abstract:
1. A power-source potential control circuit, comprising: an output terminal outputting a control signal to a power-source generating device which generates a power-source potential in accordance with said control signal; an input terminal connected to an output of said power-source generating device; a trimming code generating circuit configured to output a trimming code for trimming said power-source potential, wherein a trimming potential varies depending on a first potential at said input terminal and said trimming code; and a comparator configured to make a comparison between said trimming potential and a predetermined reference potential and to output a comparison result signal indicative of a result of said comparison as said control signal, said comparison result signal being fed-back to said trimming code generating circuit, wherein, in a trimming operation mode, said trimming code generating circuit changes said trimming code in accordance with said comparison result signal.