0 votes 0 votes MOD-8 synchronous down counter MOD-8 asynchronous up counter MOD-10 asynchronous up counter MOD-8 asynchronous down counter Please explain why it is down counter? Digital Logic digital-counter + – Mk Utkarsh asked Jan 15, 2019 Mk Utkarsh 1.2k views answer comment Share Follow See all 7 Comments See all 7 7 Comments reply Show 4 previous comments Chaitrasj commented Jan 15, 2019 reply Follow Share @Mk Utkarsh the 2nd FF will toggle only when it's clock input sees a transition from 0 to 1, since it's a positive edge triggered FF, isn't it? Then at 2nd clock, Q0 will go from 1->0, why at that instant, second FF will toggle? 0 votes 0 votes Kunal Kadian commented Jan 15, 2019 reply Follow Share It is clearly MOD-8 Asynchronous Down Counter. The flip-flops will toggle only when there is a positive edge in clock of previous flip-flop, else they will latch. 0 votes 0 votes Mk Utkarsh commented Jan 16, 2019 reply Follow Share thanks guys i solved the question assuming negative edge triggering 1 votes 1 votes Please log in or register to add a comment.