Which of the following is correct for a gated D flip-flop?a)The output...
Introduction:
A gated D flip-flop is a type of flip-flop that has an enable input, denoted as "EN". It is used to control the behavior of the flip-flop and determine when the input data should be stored and when it should be ignored. The D flip-flop has two main inputs - the data input, denoted as "D", and the clock input, denoted as "CLK". The output of the flip-flop is denoted as "Q".
Explanation:
The correct option for a gated D flip-flop is option 'D', which states that the Q output follows the input D when the enable is HIGH. Let's understand why this is the correct option.
Working Principle of a Gated D Flip-Flop:
- The gated D flip-flop stores the input data (D) on the rising edge of the clock signal (CLK) when the enable input (EN) is HIGH.
- When the enable input (EN) is LOW, the flip-flop ignores any changes in the input data (D) and the output (Q) remains unchanged.
Explanation of Other Options:
- Option 'A' states that the output toggles if one of the inputs is held HIGH. This is not true for a gated D flip-flop. The output only changes when the enable input is HIGH and the clock signal rises.
- Option 'B' states that only one of the inputs can be HIGH at a time. This is not specific to a gated D flip-flop and applies to various other digital circuits as well. It does not describe the behavior of a gated D flip-flop.
- Option 'C' states that the output complement follows the input when enabled. This is not entirely accurate for a gated D flip-flop. The output (Q) follows the input (D) only when the enable input (EN) is HIGH and the clock signal rises. The complement of the output (Q) would be denoted as Q', and it would follow the inverse of the input (D) when enabled.
Conclusion:
In conclusion, the correct option for a gated D flip-flop is option 'D'. The output (Q) follows the input (D) when the enable input (EN) is HIGH and the clock signal rises. It is important to understand the working principle of the gated D flip-flop and how it differs from other types of flip-flops.
Which of the following is correct for a gated D flip-flop?a)The output...
If clock is high then the D flip-flop operate and we know that input is equals to output in case of D flip-flop. It stores the value on the data line.