Digital Electronics: Principles, Devices and Applications

Flip-Flops and Related Devices 389and active LOW J and K inputs. Figure 10.31(b) shows the circuit symbol of the flip-flop representedby this truth table.Example 10.4The 100 kHz square waveform of Fig. 10.32(a) is applied to the clock input of the flip-flops shown inFigs. 10.32(b) and (c). If the Q output is initially ‘0’, draw the Q output waveform in the two cases.Also, determine the frequency of the Q output in the two cases.a b c d e f g h i j k l m n(a)JQClkFFKQ –(b)JQClkFFKQ –(c)Figure 10.32 Example 10.4.