8. Which of the following occurs when the enable input to a 3-line to 8- line decoder goes low (i.e. E=0)? Assume outputs of the decoder are active-low.

  1. All outputs go low(0)
  2. All outputs go high(1)
  3. The outputs go to a random pattern of 0's and 1's
  4. Power to the decoder chip is lost
  5. None of the above

1 is WRONG. Recall that the outputs for the 3 to 8 decoder are active low, not active-high.

[ Go Back To Question 8 ]

[ Go Back To The Beginning Of Quiz ]