In this paper, a 4-bit comparator circuit is designed by using Efficient Charge Recovery Logic (ECRL) and Positive Feedback Adiabatic Logic (PFAL). The designed 4-bit comparator circuit is compared ...

The 74HCT85 is a high-speed 4-bit magnitude comparator that is expandable to almost any length. It features serial or parallel expansion without extra gating and has a standard output capability. It ...