2 votes 2 votes In a $4-$bit carry look ahead adder, the propagation delay of EX-OR gate is $20ns,$ AND and OR gates is $10ns.$ The sum and carry output of full adder takes $20ns$ and $10ns$ respectively. The total propagation delay of the above adder in $ns$ is Digital Logic digital-logic combinational-circuit carry-look-ahead-adder virtual-gate-test-series + – Hradesh patel asked Oct 5, 2016 • edited Apr 2, 2019 by Lakshman Bhaiya Hradesh patel 845 views answer comment Share Follow See all 9 Comments See all 9 9 Comments reply Show 6 previous comments mcjoshi commented Oct 5, 2016 reply Follow Share May be this helps you. 0 votes 0 votes Shivam Chauhan commented Oct 5, 2016 reply Follow Share @mcjoshi what does this mean " The sum and carry output of full adder takes 20ns and 10ns respectively ". the information provided in previous sentence was sufficient 0 votes 0 votes mcjoshi commented Oct 5, 2016 reply Follow Share first information is about gates and second one about adder and $4-bit$ adder requires $3-full$ and $1-half$ adder. 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes Generated terms and prop. terms work in parallel. Look at the image attached. supreetshukla answered Jan 4, 2023 supreetshukla comment Share Follow See all 0 reply Please log in or register to add a comment.
