Digital System II Quiz: Counters

What is the main characteristic of an asynchronous counter?

• All flip-flops are clocked together

• Triggering occurs at the same time

• Clock input is connected to the LSB flip-flop

• It has a fixed time relationship

What is the maximum possible number of states for a counter with n flip-flops?

• 2^n

• n^2

• 2n

• n!

What is a decade counter?

• A counter with eight states

• A counter that counts in binary

• A counter that counts from 0 to 9

• A counter with a modulus of 16

What is the purpose of a NAND gate in a BCD decade counter?

• To toggle the clock pulse

• To connect the flip-flops

• To reset the counter

• To increase the count

In a synchronous counter, how are the flip-flops clocked?

• With a random clock signal

• Only the first flip-flop is clocked

• With a common clock pulse

• Individually with different clock pulses

What is the primary disadvantage of asynchronous counters?

• They require more flip-flops

• They have accumulated propagation delays

• They cannot recycle

• They are more complex to design

What is the output sequence of a 3-bit binary synchronous counter?

• 000, 001, 010, 011, 100, 101, 110, 111

• 000, 001, 010, 100, 101, 110, 111

• 000, 001, 010, 011, 100, 101

• 000, 001, 010, 011, 100, 101, 110

What is the purpose of a state diagram in counter design?

• To show the physical layout of the circuit

• To calculate propagation delays

• To determine the number of flip-flops needed

• To specify the counter sequence

What is a Gray code counter?

• A counter that counts in binary

• A counter that changes only one bit at a time

• A counter that uses only two states

• A counter that counts in decimal

How many flip-flops are required for a BCD decade counter?

• 4

• 5

• 3

• 2