Complete the problems and submit a PDF of your solutions. Points are in parenthe

Question

Complete the problems and submit a PDF of your solutions. Points are in parentheses. 1) Create a truth table for the following circuit. How is this latch related to those described in the lectures and in the textbook? (Describe similarities and differences with the most closely related latch). 2) The latch in Question 9 has unpredictable behavior if the S and R inputs are both equal to 1 when C changes to 0. One way to solve this problem is to create a set-dominated gated SR latch in which the condition S=R=1 causes the latch to be set to 1. Design a set-dominated gated SR latch. Show the circuit. 3) Show how to implement a D flip-flop starting with a J-K flip-flop. 4) A sequential circuit contains two flip-flops T1 and T2. The circuit has no external inputs. The only external output are the values of the current state (Q1 and Q2). The flip-flop inputs are connected as: T1 = Q1 + Q2 T2 = Q1' + Q2 Explain the function that the circuit performs. 5) Draw the state diagram

Explanation / Answer

Truth Table

This latch is related to general latch (non clocked SR latch) as its function is same as non SR latch when C is 1 . But when C is 0 this latch performs no action and holds the state.

C S R Qnext Qnext' Comment 0 - - Q Q' hold state 1 0 0 Q Q' hold state 1 0 1 0 1 reset 1 1 0 1 0 set 1 1 1 X X not allowed

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