Monday, 3 December 2012

All about J-K Flip-Flop


By on 03:58

JK flip flop is an electronic circuit in which a letter 'J' refer to set and 'k' refer to Reset.

Truth Table:-



JKQ(n+1)Q(n+1)'Action
00Q(n)Q(n)'No Change
0101Reset
1010Set
10Q(n)Q(n)Toggle


PS-NS Table(or Present State-Next State):-


Q(n)JKQ(n+1)Q(n+1)'Action
00001No Change
00101Reset
01010Set
011Q(n)'Q(n)Toggle 
10010No change
10101Reset
11010Set
111Q(n)'Q(n)Toggle



Excitation Table or Application Table:-


Q(n)Q(n+1)JK
000X
011X
10X1
11X0


Circuit Diagram of J-K flip flop using NAND gate:-






Circuit Diagram of J-K flip flop using NOR gate:-







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