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00000EC207121901

Design a synchronous self starting counter to count the sequence 0,1,3,4,5,7,0,1...
... using T flip flops. When the counter enters an unused state, the counter has to
start counting from 0.
Implement the following Boolean functions using PLA.
f1(A,B,C) = 3:00, 1,3,5) f2(A,B,C)=)'m(0,2,5,7,9, 10,12,14,15)
Design a mod-12 synchronous counter using T flip-flop.

PART ^

Answer any two full questions, each carries 20 marks.

Draw the logic diagram of a four bit, bi-directional serial in serial out (SISO)
shift register with LOAD/SHIFT control and explain the working with timing
diagram.

Differentiate Moore and Mealy models with example state diagram.

Draw the logic diagram of a 3 bit Johnson counter and explain the working with
truth table.

Reduce the given state table using partition method and obtain the equivalent

states.

Present state | Next State Output

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