Final answer:
A synchronous modulo 3 counter can be designed using either D-type or JK flip-flops by setting up a state transition that cycles through the representations of 0, 1, and 2, and includes a reset mechanism to restart the cycle.
Step-by-step explanation:
The correct answer is option Engineering. To design a synchronous modulo 3 counter using D-type and JK flip-flops, one needs to create a state diagram that cycles through the states 00, 01, and 10, which represent the numbers 0, 1, and 2, respectively. The counter then resets to 00, following the sequence 0, 1, 2, 0, and so on.
For a modulo-3 counter with D-type flip-flops:
- Connect the inverse of the second flip-flop to the D input of the first flip-flop.
- The Q output of the first flip-flop is connected to the D input of the second flip-flop.
- A reset logic needs to be implemented to reset the state to 00 when the counter reaches the number 2 (binary 10).
For a modulo-3 counter with JK flip-flops:
- Both J and K inputs of each flip-flop are connected to logic 1.
- A feedback loop from the output of the second flip-flop to the clock input of the first flip-flop is needed.
- Similar to the D-type, a reset logic that resets the counter to 00 at state 10 needs to be implemented.
Both designs will require additional logic to ensure that the counter advances correctly through the desired sequence and resets appropriately.
The correct answer is option (a) D-type and option (b) JK- flip-flops.
A synchronous modulo 3 counter is a type of digital circuit that counts in the sequence 0, 1, 2, 0, 1, 2, ... by using three flip-flops.
In option (a) D-type flip-flops are used where the output of one flip-flop is connected to the D input of the next flip-flop. In option (b) JK flip-flops are used and the J and K inputs are connected to enable the desired counting sequence.