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ECE 320 Homework #6. Derive the state table and state diagram of the sequential circuit of the Figure below. What is the function of the circuit?. B’. B. A’. A. Q’. Q. Q’. Q. T. T. ECE 320 Homework #6.
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ECE 320 Homework #6 • Derive the state table and state diagram of the sequential circuit of the Figure below. What is the function of the circuit? B’ B A’ A Q’ Q Q’ Q T T
ECE 320 Homework #6 • A sequential circuit has four flip-flops A,B,C,D an input x and output z. It is described by the following state equations: A(t*)=(CD’+C’D)+(CD+C’D’)x B(t*)=A C(t*)=B D(t*)=C z=AB’+CD’ Construct the state table and state diagram. • A sequential circuit has two flip-flops (A and B), two inputs (x and y) and an output (z). The flip-flop input functions and the circuit output function are as follow: JA=xB+y’B’ KA=xy’B’ JB=xA’ KB=xy’+A z=xyA+x’y’B Obtain the logic diagram, state table and state diagram
ECE 320 Homework #6 • A sequential circuit has one input and one output. The state diagram is shown in Figure below. Design the sequential circuit with: • T flip-flop • JK flip-flop • D flip-flop 0/0 1/1 001 0/0 0/0 1/0 100 011 010 0/0 1/1 1/1 1/1 0/0 000
ECE 320 Homework #6 • Design a counter with the following sequence: 0,1,3,2,6,4,7 and repeat. (Use JK flip-flop) • Design a counter that counts the decimal digits according to the 84-2-1 code. (Use T flip-flop)