| 摘要 |
The frequency divider includes the buffer 30, the function selector 31 and the inverter 32. The output of the function selector 31 is input to the buffer 30. The output of the buffer 30 is fed back to the function selector 31 by two paths. One path includes the inverter 32 and the other does not. The function selector 31 selects one of the paths in synchronous with input clock CK. At one timing the output of the buffer 30 is flipped by the inverter 32. At the next timing the output of the buffer 30 is held the same by the function selector 31 selecting the path not including the inverter 32.
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