Input circuit and semiconductor integrated circuit comprising the input circuit
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United States of America Patent
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Dec 7, 2010
Grant Date -
Aug 13, 2009
app pub date -
Jan 26, 2007
filing date -
Jan 26, 2006
priority date (Note) -
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Abstract
A control signal input circuit for supplying control signals to a plurality of controlled circuits comprises N pieces of control signal preservation/output circuits provided one by one corresponding to plural-bit signals for delivering input data as it is when a trigger signal is at a first level, and holding previously delivered output data when the trigger signal is at a second level, and a controlled circuit selector circuit for setting the trigger signal for S pieces of the control signal preservation/output circuits to the first level, and setting the trigger signal for the rest of the control signal preservation/output circuits to the second level.
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