| 摘要 |
In a flip-flop circuit, a master latch has a data input circuit that reads data when a clock input signal is at a first level. When the clock input signal is at a second level, a first data holding circuit holds the data, and a signal switching circuit transfers the data to a slave latch. The slave latch reads the data from a data output circuit when the clock input signal is at the second level. When the clock input signal returns to the first level, a second data holding circuit holds the data read from the data output circuit.
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