74141 1-of-10 inverting decoder/demultiplexer. +----------+ +-------------------------------+ /Y8 |1 +--+ 16| /Y0 | S3| S2| S1| S0|/Y0|/Y1|...|/Y9| /Y9 |2 15| /Y1 |---+---+---+---+---+---+---+---| S0 |3 14| /Y5 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | S3 |4 74 13| /Y4 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | VCC |5 141 12| GND | . | . | . | . | 1 | 1 | . | 1 | S1 |6 11| /Y6 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | S2 |7 10| /Y7 | 1 | 0 | 1 | X | 1 | 1 | 1 | 1 | /Y2 |8 9| /Y3 | 1 | 1 | X | X | 1 | 1 | 1 | 1 | +----------+ +-------------------------------+ [This information is part of the GIICM]