7411138 1-of-8 inverting decoder/demultiplexer. +----------+ +-----------------------------------------+ /Y1 |1 +--+ 16| /Y0 |EN1|/EN2|/EN3| S2| S1| S0|/Y0|/Y1|...|/Y7| /Y2 |2 15| S0 |---+----+----+---+---+---+---+---+---+---| /Y3 |3 14| S1 | 0 | X | X | X | X | X | 1 | 1 | 1 | 1 | GND |4 7411 13| S2 | 1 | 1 | X | X | X | X | 1 | 1 | 1 | 1 | /Y4 |5 138 12| VCC | 1 | 0 | 1 | X | X | X | 1 | 1 | 1 | 1 | /Y5 |6 11| EN1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | /Y6 |7 10| /EN2 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | /Y7 |8 9| /EN3 | 1 | 0 | 0 | . | . | . | 1 | 1 | . | 1 | +----------+ | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | +-----------------------------------------+ [This information is part of the GIICM]