Digital Electronics

1

A device used to display one or more digital signals so that they can be compared to expected timing diagrams for the signals is a:


A. DMM
B. spectrum analyzer
C. logic analyzer
D. frequency counter

2

The generic array logic (GAL) device is ________.

A. one-time programmable
B. reprogrammable
C. a CMOS device
D. reprogrammable and a CMOS device

3

How many flip-flops are required to produce a divide-by-128 device?


A. 1
B. 4
C. 6
D. 7

4

Which of the following expressions is in the sum-of-products (SOP) form?

A. (A + B)(C + D)
B. (A)B(CD)
C. AB(CD)
D. AB + CD

5

How is a J-K flip-flop made to toggle?


A. J = 0, K = 0
B. J = 1, K = 0
C. J = 0, K = 1
D. J = 1, K = 1