1. How many AND gates would be required to completely decode ALL the states of a MOD-64 counter, and how many inputs must each AND gate have ?

128 gates, 6 inputs to each gate

64 gates, 5 inputs to each gate

64 gates, 6 inputs to each gate

128 gates, 5 inputs to each gate

Answer: 64 gates, 6 inputs to each gate

Explanation:


2. A ripple counter's speed is limited by the propagation delay of: ?

each flip-flop

all flip-flops and gates

the flip-flops only with gates

only circuit gates

Answer: each flip-flop

Explanation:


3. The parallel outputs of a counter circuit represent the: ?

parallel data word

clock frequency

counter modulus

clock count

Answer: clock count

Explanation:


4. Which of the following is an example of a counter with a truncated modulus ?

8

13

16

32

Answer: 13

Explanation: