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Digital Electronics - Flip-Flops - Discussion

Discussion Forum : Flip-Flops - General Questions (Q.No. 19)
Flip-Flops
19.

Four positive edge-triggered D flip-flops are used to store a 4-bit binary number as shown below. Determine if the circuit is functioning properly, and if not, what might be wrong.

The circuit is functioning properly.
Q2 is incorrect; the flip-flop is probably bad.
The input to flip-flop 3 (D2) is probably wrong; check the source of D2.
A bad connection probably exists between FF-3 and FF-4, causing FF-3 not to reset.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 2 of 2.
Ruksana said:   1 decade ago
What is the meaning of D = -1?
Lakshmi said:   10 years ago
Explain how q2 is incorrect?
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