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Switching Circuits and Logic Design Quiz 2 14:20 ~ 15:10, December 27, 2007 1. [25 points] Please convert a S-R flip-flop to a J-K flip-flop by adding external gates. 2. [25 points] Complete the timing diagram in Figure Q2(b) for the circuit in Figure Q2(a). Note that the Ck inputs on the two flip-flops are different. (a) (b) Figure Q2 3. [25 points] Design a 3-bit counter which counts in the sequences
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Unformatted text preview: CBA = 001, 100, 101, 111, 110, 010, 011, 001, … With D flip-flops. 4. [25 points] A sequential circuit has one input (X) and one output (Z). Draw a Mealy state graph (nine states are sufficient) for the following case: The output is Z = 1 iff the total number of 1’s received is divisible by 3 and the total number of 0’s received is an even number greater than zero....
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## This note was uploaded on 02/21/2012 for the course EE 101 taught by Professor 張捷力 during the Spring '07 term at National Taiwan University.

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