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Why does the master slave J-K flip flop not requires an edge trigger while the J-K flip flop does?
Wiki User
∙ 12y ago
The master slave has two flip flops, a master stage and a slave stage. The master stage is committed on one transition of the clock, while the slave stage is committed, based on the master stage's state, on the next transition of the clock. This eliminates race conditions, unless the clock pulse is so narrow as to make them become an issue again.
The non master slave, however, bases its output state on the JK inputs just prior to one clock edge. In this respect, its somewhat no different than the master slave variant, except that the output in the master slave is committed prior to actually changing state, whereas the output in the non master slave is committed very close to its actually changing state. The problem is simply one of design - if the input is a function of output, then race conditions in the non master slave can make the output indeterminate, and that is poor design. No ifs, ands, ors, buts, or maybes. :-)>
Wiki User
∙ 12y ago
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What is the main difference between normal JK flip flop and master slave JK flip flop?
A normal JK flip-flop has the output change state based on the input on the leading edge of clock, while the master-slave variety predetermines the output on the leading edge of clock and then effects the actual change of the trailing edge of clock, making it impervious to race conditions.
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Why master slave jk flip flop is preferred over jk flip flop?
A plain JK flipflop is unreliable as it is enabled by the level of the clock, not the edge. In a master-slave flipflop, the master section captures the new state based on the inputs while the clock level is high, then the slave section captures the new state from the master while the clock level is low. This has the effect of making the flipflop act as if it was falling edge clocked but retains the simplicity of design of flipflops that are level enabled.
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Saint Patrick's job as a slave in Ireland was to tend sheep. He worked as a shepherd for his master while enslaved.
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How master flip flop is used to overcome time race in jk flip flop explain?
In a master-slave flip-flip arrangement, the master flip-flop determines its state on one clock edge, while the slave flip-flop determines its state on the following clock edge. This way, the end-to-end output does not ever change on any one clock edge, so no race condition is possible.
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