7416540 Quad 4-bit 3-state inverting buffer/line drivers. +----------+ /1O1 |1 +--+ 48| /1O2 /1Y1 |2 47| 1A1 /1Y2 |3 46| 1A2 GND |4 45| GND /1Y3 |5 44| 1A3 /1Y4 |6 43| 1A4 VCC |7 42| VCC /1Y5 |8 41| 1A5 /1Y6 |9 40| 1A6 GND |10 39| GND /1Y7 |11 38| 1A7 /1Y8 |12 7416 37| 1A8 /2Y1 |13 540 36| 2A1 /2Y2 |14 35| 2A2 GND |15 34| GND /2Y3 |16 33| 2A3 /2Y4 |17 32| 2A4 VCC |18 31| VCC /2Y5 |19 30| 2A5 /2Y6 |20 29| 2A6 GND |21 28| GND /2Y7 |22 27| 2A7 /2Y8 |23 26| 2A8 /2O1 |24 25| /2O2 +----------+ [This information is part of the GIICM]