0 votes 0 votes If there are total 21 different states in a system and there is one external input, then how many flip flops are required in case of : ripple counter ring counter johnson counter Digital Logic self-doubt flip-flop + – Balaji Jegan asked Sep 16, 2018 Balaji Jegan 604 views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply Magma commented Sep 16, 2018 reply Follow Share Can you tell me what is the answer given ??? 0 votes 0 votes arvin commented Sep 17, 2018 reply Follow Share is it 4,20,10????? not sure 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes 1.5 2.21 3.11 Raghav Khajuria answered Sep 17, 2018 Raghav Khajuria comment Share Follow See all 3 Comments See all 3 3 Comments reply arvin commented Sep 17, 2018 reply Follow Share and there is an external input... what about that? wont we consider that.. 0 votes 0 votes Vegeta commented Oct 1, 2018 reply Follow Share @arvin what is the meaning of external input?? 0 votes 0 votes arvin commented Oct 1, 2018 reply Follow Share External input is like an extra bit you can say that can be considered to reduce the complexity of circuit... 0 votes 0 votes Please log in or register to add a comment.
