adspace


Explain the working of 4-bit Up/down Counter?

Answer Posted / Shalu Singh

A 4-bit up counter can be designed using D flip-flops and JK flip-flops. In a D flip-flop, Q = D, while in a JK flip-flop, Q = T, where T = (J + K)'(J+Q) + J'K'. To create an up counter, initialize all flip-flops to 0 and use synchronous reset. For each clock cycle, the output of the least significant bit (LSB) is incremented by 1, with a carry being generated if necessary. If there is no carry-out from the LSB, then the remaining flip-flops are shifted left, while the LSB is set to 0. A similar approach can be used for a down counter.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Write a VLSI program that implements a toll booth controller?

4065


Process technology? What package was used and how did you model the package/system? What parasitic effects were considered?

3218


What work have you done on full chip Clock and Power distribution? What process technology and budgets were used?

3350


What types of CMOS memories have you designed? What were their size? Speed?

4732