Data input FF0 FF1 FF2 FF3 Data output CLK CLEAR Task 3 For the serial data input and clock signal in the figure below, analyse the state of each flip- flop in the shift register shown above, and develop the Q waveforms. Assume that the registers contain all 1's initially. CLK Serial data input
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This means that the Q outputs of all the flip-flops are high. Show more…
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Question 1: We wish to build a 3-bit synchronous counter using edge-triggered J-K flip-flops with outputs Q3, Q2, and Q1. A schematic diagram (minus the logic for the flip-flop inputs) is shown below: The counter must output the following sequence of decimal numbers in 3-bit binary: 2 → 4 → 7 → 5 → 2 → .... The output of the counter is Q3Q2Q1. Assume that the counter never starts or gets into an illegal state. (a) Write down the state diagram for this counter. (b) Write down the next state table for this counter. (c) Write down the flip-flop transition table for a J-K flip-flop.
Maitreya E.
(a) The SR flip-flop can be converted to a D flip-flop. Illustrate the conversion and block diagram using additional logic gates. (b) The D input and a single clock pulse are shown in Figure Q5b. Compare the resulting Q outputs for positive edge-triggered and negative edge-triggered. The flip-flops are initially RESET. (c) A 3-bit counter has the following counting sequence: 0, 1, 2, 5, 7, 6, 4, 3, 0... repeats. Determine the state transition diagram, MOD number of the counter, and number of states.
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