![]() ![]() The difference between positive and negative edge triggering can be explained in the following section with an example. Explain the difference between positive and negative edge triggering The term edge-triggered means that the flip-flop changes its state either at the positive edge (rising or leading edge) or at the negative edge (falling or trailing edge) of the clock pulse and is sensitive to its inputs only at this transition of the clock. What is meant by edge triggering of flip-flop? Table 2), the clock symbol represents the negative-edge triggering. ![]() table 1 and 3), the clock symbol represents the positive-edge triggering. Table 1), a clock symbol is used for the positive level triggering. In the case of clocked R-S flip-flop (ref. If we see the logic symbols of different flip-flops, we can understand the variation in symbols used for clock input. The knowledge of the logic symbols and truth table of basic flip-flops are an important part to draw the logic diagram and understand the basic operation of any kind of sequential circuit. Table 3: Logic symbols and truth table of T flip-flop
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