This quiz covers flip-flops and clocks. Please refer to the lecture notes for background material covering this subject. (Go back to homepage.) What frequency clock source will produce clock waveforms having a period equal to 5 us (5 microseconds)? ```Note: M = 10^6 k = 10^3 m = 10^-3 u = 10^-6 ``` The logic circuit shown represents most closely the architecture of a 2 kHz (2 kiloHertz) clock will produce clock waveforms having which of the following period values . ```Note: M = 10^6 k = 10^3 m = 10^-3 u = 10^-6 ``` Which of the following will correctly complete the JK flip-flop truth table shown below? ``` J K Qn | Qn+1 -------|----- 1) 0 2) 0 3) 0 4) 0 5) 1 0 0 0 | ? 1 1 0 0 1 0 1 1 | ? 1 0 1 1 0 1 0 1 | ? 0 0 1 0 1 1 1 1 | ? ``` Which of the following will correctly complete the D flip-flop truth table shown below? ``` D Qn | Qn+1 ------|----- 1) 1 2) 1 3) 0 4) 0 5) 0 0 0 | ? 1 1 0 0 1 0 1 | ? 1 0 0 1 1 1 0 | ? 1 1 1 1 0 1 1 | ? ``` Which of the following will correctly complete the JK flip-flop truth table shown below? ``` J K Qn | Qn+1 -------|----- 1) 0 2) 0 3) 0 4) 0 5) 1 0 0 0 | ? 1 1 0 0 1 0 1 0 | ? 1 0 1 1 0 1 0 0 | ? 0 0 1 0 1 1 1 0 | ? ``` Qn is stable over which of the following clock regions? Refering to the clock regions of the last question, during what region should the inputs of a flip-flop be established to initiate a output change from Qn to Qn+1? The PRE and CLR (preset & clear) inputs of a master/slave JK flip-flop overide the JK inputs