74520 8-bit inverting identity comparator with itegrated 20kO pull-up resistors and enable. +----------+ /EN |1 +--+ 20| VCC A0 |2 19| A=B B0 |3 18| B7 A1 |4 17| A7 B1 |5 74 16| B6 A2 |6 520 15| A6 B2 |7 14| B5 A3 |8 13| A5 B3 |9 12| B4 GND |10 11| A4 +----------+ [This information is part of the GIICM]