74398 8-to-4 line data selector/multiplexer with output registers and complementary outputs. +----------+ S |1 +--+ 20| VCC 1Y |2 19| 4Y /1Y |3 18| /4Y 1A0 |4 17| 4A0 1A1 |5 74 16| 4A1 2A1 |6 398 15| 3A1 2A0 |7 14| 3A0 /2Y |8 13| /3Y 2Y |9 12| 3Y GND |10 11| CLK +----------+ [This information is part of the GIICM]