74137 1-of-8 inverting decoder/demultiplexer with address latches. +----------+ S0 |1 +--+ 16| VCC S1 |2 15| /Y0 S2 |3 14| /Y1 /LE |4 74 13| /Y2 /EN2 |5 137 12| /Y3 EN1 |6 11| /Y4 /Y7 |7 10| /Y5 GND |8 9| /Y6 +----------+ [This information is part of the GIICM]