WorksheetsCounter Design Quiz
Total questions: 15
Worksheet time: 8mins
What is a synchronous Counter?
A counter where all flip-flops are clocked simultaneously
A counter where only the last flip-flop is clocked externally
A counter that counts in reverse order only
A counter that does not require any flip-flops
In an asynchronous counter, each flip-flop is triggered by:
The external clock signal
The output of the preceding flip-flop
A specific enable signal
The sum of all flip-flops' outputs
What is the main disadvantage of asynchronous (ripple) counters?
They are expensive
They consume too much power
Propagation delay accumulates through each flip-flop stage
They cannot count in both directions
A BCD ripple counter counts from:
0 to 9
0 to 15
0 to 255
0 to 999
In a synchronous counter, all flip-flops are triggered by:
The output of a preceding flip-flop
An asynchronous signal
A common clock signal
The external reset signal
What is the purpose of state reduction in counter design?
To increase the number of states in a counter
To reduce the number of flip-flops required
To enhance clock frequency
To increase propagation delay
Which of the following counters can count in both upward and downward directions?
Asynchronous counter
Synchronous counter
Up/Down counter
Ring counter
In a Modulo-n counter, 'n' represents:
The number of flip-flops
The number of states the counter cycles through
The propagation delay per state
The modulus of the counter's frequency
How many flip-flops are needed to design a Mod-16 synchronous counter?
2
3
4
5
Which counter is also known as a Twisted Ring Counter?
Ripple counter
Johnson counter
BCD counter
Modulo-n counter
What is a characteristic feature of a Ring Counter?
It uses a binary encoding of states
Only one flip-flop is set at any time
All flip-flops are set simultaneously
It operates asynchronously
A sequence detector is typically used to:
Detect specific binary patterns in input signals
Count up to a specific number
Generate random numbers
Generate fixed time delays
In Verilog, which of the following is used to represent a synchronous reset?
always @ (posedge clk)
always @ (negedge clk)
always @ (reset)
always @ (clk or reset)
For a 4-bit Johnson Counter, how many unique states can it have?
4
8
16
32
In the design of sequential circuits, state assignment is used to:
Reduce propagation delay
Assign binary codes to each state
Increase the number of flip-flops
Reduce the clock frequency
