Comparator circuit using two bit to four bit encoder

摘要

Comparative circuits 10, 100 for comparing a first address comprising at least two bits to a second address comprising an equal number of corresponding bits as the first address to determine if the first address equals or does not equal the second address as disclosed. Comparative circuits 10, 100 include two bit to four bit encoders for encoding each two bits of the first address into a first four bit representation, wherein each bit has an on state and an off state and only one of the four bits is in the on state at one time, each two bits of the second address into a second four bit representation, wherein each bit corresponds to a bit from the first four bit representation. The four bit representations are then inputted into the remainder of the comparator circuits 10, 100.