74HC85D Datasheet PDF

Nexperia 74HC85D

The 74HC85; 74HCT85 is a 4-bit magnitude comparator that can be expanded to almost any length. They perform comparison of two 4-bit binary, BCD or other monotonic codes and present the three possible magnitude results at the outputs (QA>B, QA=B and QAB, IA=B and IAB, QA=B and QAB QA=B QAB 5 12 A1 QA=B 6 11 B1 QAB 5 QA=B 6 QAB QA=B QAB output A=B output AB IA B3 X X X X X X A3 < B3 X X X X X X A3 = B3 A2 > B2 X X X X X A3 = B3 A2 < B2 X X X X X A3 = B3 A2 = B2 A1 > B1 X X X X A3 = B3 A2 = B2 A1 < B1 X X X X A3 = B3 A2 = B2 A1 = B1 A0 > B0 X X X A3 = B3 A2 = B2 A1 = B1 A0 < B0 X X X A3 = B3 A2 = B2 A1 = B1 A0 = B0 H L L A3 = B3 A2 = B2 A1 = B1 A0 = B0 L H L A3 = B3 A2 = B2 A1 = B1 A0 =...