Question

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Counters are classified into two broad categories according to the way they are clocked: asynchronous and synchronous counter. Using J-K flip-flops, design a 3-bit synchronous counter with a state diagram as shown in FIGURE Q1. [24 marks] 000 011 100 010 (111 FIGURE Q1

Answer 1

1 ts using 3-bit synchronour counter with a stufe diagram an Shown in fig.al Toto Excitation teble of Jk flip-flop LG ) & (m+1) | T K pis Nos lo * * - tigal o -o - sent state 1 Next stere Q2 Q QO 0 0 d ooo | J, K, TJ, x 10 K, LTo Ko x 10 x Loo1-| 0 olo o 0 1 1 0 o 0 10 X X 1 X / X X 1 0 X Now, Find T2, K2, T,, Ki, Jo and to using posent state of state diagram 231960 oi Il 10 Az hot oil 10, olal 70707 0x Tax] 1,20 12 Jp = ã ão K2=Q2Q1 Scanned with CamScanner L2R

JL ... 19.00 h X } = Q2 o ão ki = Oz Q, Qo Q21oo, ol !! 10 Q2 hPa Ollo oxTo * Ko-Q, 80 Jo = Q₂ 0 90 +9QI Qo 99.90 0241 elk: FC Scanned with CamScanner