| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technique capable of suppressing occurrence of a phenomenon in which a time from input to output varies depending on signals to be selected. <P>SOLUTION: A plurality of selectors each capable of selecting and inputting any one of M-items of input signals to an output terminals are juxtaposed, and a hierarchy from a first selector stage for selecting M<SP>N-1</SP>-items of output from M<SP>N</SP>-items of input terminals to an N-th selector stage consisting of one selector is built by successively reducing the multiplier N one by one. The signal selecting circuit is provided with a selector layer 101; and a wiring layer 102 where wiring is executed on each of stages from the first selector stage to the N-th selector stages, and the wiring is performed between input/output terminals of each of the selectors so that the wiring for an (mm≤M)th input terminal of each selector can cross the wiring an M'th input terminal. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
