Counter circuit and semiconductor device containing the same
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United States of America Patent
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Apr 15, 2008
Grant Date -
Jul 20, 2006
app pub date -
Jan 10, 2006
filing date -
Jan 14, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A counter circuit includes a counter section having flip-flops of a plurality of stages. The flip-flops from a first stage to an (N-1).sup.th (N is an integer more than 2) stage synchronously count a clock signal. A mask circuit section controls supply of the clock signal to the flip-flop of an N stage based on outputs of the flip-flops from the first stage to the (N-1).sup.th stage.
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