2 votes 2 votes Consider the circuit with initial state Q0=0,Q1=0 and Q2=0. Then which of the following sequence of output is correct? a)4, 6, 3 b) 1, 3, 7 c) 3, 6, 4 d) 7, 3, 1 Digital Logic digital-logic + – Sahil1994 asked Jan 26, 2018 • edited Jan 26, 2018 by Sahil1994 Sahil1994 460 views answer comment Share Follow See all 7 Comments See all 7 7 Comments reply Anjan commented Jan 26, 2018 reply Follow Share How can $D_0$ can output $Q_{2}$ ?? 0 votes 0 votes Sahil1994 commented Jan 26, 2018 reply Follow Share @Anjan Yes, may be there is misprint what will be output if we replace Q2 by Q0....and in third flipflop Q0 by Q2..? 0 votes 0 votes Shubhanshu commented Jan 26, 2018 reply Follow Share A) is correct but Correct Counting sequence is 0 - 4 - 6 - 3 - 1 - 0..... 0 votes 0 votes Sahil1994 commented Jan 26, 2018 reply Follow Share @ Shubhanshu Sir, can you give solution So that i can improve my mistake..? 0 votes 0 votes Shubhanshu commented Jan 26, 2018 reply Follow Share To solve these types of question you need to construct a table. In this case you need a table of 6 columns and column names are Q2, Q1, Q0, D2, D1, D0 and then write the input to each D flipflop over them, like D2 input is Q1 EX-NOR Q0, D1 input is Q2 and D0 input is Q1. This is an easy way to solve sync counter question. 0 votes 0 votes Sahil1994 commented Jan 26, 2018 reply Follow Share ok thanx @ Shubhanshu Sir, can you add an your answere...pic of solution..? 0 votes 0 votes shubham007 commented Jan 27, 2018 reply Follow Share ans is (b) 0 votes 0 votes Please log in or register to add a comment.