74306 2-bit 3-state noninverting buffer/line driver. +----------+ +-----------+ /1OE |1 +--+ 8| 1Y | A |/OE| Y | 1A |2 74 7| VCC |---+---+---| GND |3 306 6| 1A | 0 | 0 | 0 | /2OE |4 5| 2Y | 1 | 0 | 1 | +----------+ | X | 1 | Z | +-----------+ [This information is part of the GIICM]