Interview Question: Design 3 - Bit Binary Counter From 2 - Bit Binary Counter

[spartanthewarrior]

Hi All,

Can anybody help me in answering this question.

How can i design 3-Bit Binary Counter From 2-Bit Binary Counter.

 

[lostinxlation]

cascading...

 

[spartanthewarrior]

Will you please explain a little bit.

 

[lostinxlation]

Do you notice a certain pattern ?

000
001
010
011
100
101
110
111
000
001
010
....

 

[sam33r]

HINT : When you will count the first 4 (0 to 4) append 0(add 0) to a 2 bit counter and when you will count next 4 (4 to 8 ) append 1(add 4) to the count. And continue in the same way.