0 votes 0 votes what is the maximum counting speed of 4-bit binary counter which is composed of flip-flops with a propagation delay of 25ns? Digital Logic digital-logic logic + – lohith asked Oct 8, 2015 retagged Oct 13, 2017 by Arjun lohith 4.3k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
1 votes 1 votes 4 Bit binary counter(asynchronous counter) means There are 4 flip flops and each flip flop delay is 25ns so total delay 4*25ns = 100ns counting speed = frequency of the output = 1/100=10Mhz Umang Raman answered Oct 8, 2015 Umang Raman comment Share Follow See 1 comment See all 1 1 comment reply Brij gopal Dixit commented May 5, 2019 reply Follow Share Synchronous counter is faster than Ansynchronous counter .And for Synchronous counter counting speed will be 1/25 = 40 MHZ is it right ?? 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes i think it will be 25 ns because it is given , the maximum speed, which can be attained by sychronous counter only. and here is 4 bit counter http://www.electronics-tutorials.ws/counter/count_3.html Tendua answered Nov 17, 2015 Tendua comment Share Follow See all 0 reply Please log in or register to add a comment.