747266 Quad 2-input XNOR gates. +----------+ +-----------+ _ _ _ 1A |1 +--+ 14| VCC | A | B |/Y | Y = A$B = (A*B)+(A*B) 1B |2 13| 4B |---+---+---| /1Y |3 747 12| 4A | 0 | 0 | 1 | 2A |4 266 11| /4Y | 0 | 1 | 0 | 2B |5 10| 3B | 1 | 0 | 0 | /2Y |6 9| 3A | 1 | 1 | 1 | GND |7 8| /3Y +-----------+ +----------+ [This information is part of the GIICM]