7411002 Quad 2-input NOR gates with buffered output. +----------+ +-----------+ ___ 1A |1 +--+ 16| 1B | A | B |/Y | /Y = A+B /1Y |2 15| 2A |---+---+---| /2Y |3 14| 2B | 0 | 0 | 1 | GND |4 7411 13| VCC | 0 | 1 | 0 | GND |5 002 12| VCC | 1 | 0 | 0 | /3Y |6 11| 3A | 1 | 1 | 0 | /4Y |7 10| 3B +-----------+ 4B |8 9| 4A +----------+ [This information is part of the GIICM]