brief introduction： D flip-flop is an information storage device with memory function and two stable states. It is the most basic logic unit of many kinds of sequential circuits and an important unit circuit in digital logic circuits.D flip-flop working principle: the output Y of D flip-flop is always the same as the input D. In the K end of JK flip-flop, a non-gate is connected in series, and then it is connected to the J end, leading to a control end D, which constitutes D flip-flop.D flip-flop function: the inpu

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