Digital Electronics - Study Mode
[#16] A 4-bit Johnson counter is initialized to 0101. Every time the state 1011 is reached, the counter is re-initialized to 0000 at the next clock active edge. Again when the state 0001 is reached, the counter is initialized back to 0101 at the next clock active edge. The cycle length of the counter is
Correct Answer
(D) 12
[#17] In JK flip flop, if we input K with the inverted form of what we input J, the resulted flip flop is
Correct Answer
(C) D flip flop
[#18] An 8-bit SISO mode needs . . . . . . . . clock pulses to load an 8-bit number into a register.
Correct Answer
(C) 8
[#19] Considering X and Y as binary variables, the equivalent Boolean expression for Y(X + Y) is
Correct Answer
(B) Y
[#20] Consider the following statements regarding memory: 1. Integrated circuit RAM chips are available in both static and dynamic modes. 2. The dynamic RAM stores the binary information in the form of electric charges that are applied to capacitors. 3. The static RAM is easier to use and has shorter read and write cycles. 4. RAM and ROM chips are not available in a variety of physical sizes. Which of the above statements are correct?
Correct Answer
(A) 1 and 2 only