Electronics and Communication Engineering - Digital Electronics - Discussion

Discussion Forum : Digital Electronics - Section 6 (Q.No. 45)
45.
The counter shown in the given figure is built using 4 -ve edge triggered toggle FFs. The FF can be set asynchronously when R = 0. The combinational logic required to realize a modulo-13 counter is
F = Q4 Q3 Q2 Q1
F = Q4 + Q3 + Q2 + Q1
F = Q4 + Q3 + Q2 + Q1
F = Q4Q3Q2Q1
Answer: Option
Explanation:

Counter is modulo-13, it will count up to 15 but due to mod-13, it will be reset at 13, (13)10 = (1101 )2 = Q4 Q3 Q2 Q1.

Discussion:
2 comments Page 1 of 1.

Vishnu said:   4 years ago
Yes, you are right @Ramu.

Ramu said:   8 years ago
Option B is the correct answer. It will give output zero to reset the FFs.

Post your comments here:

Your comments will be displayed after verification.