7416241 Quad 4-bit 3-state noninverting buffer/line driver. Two active low, two active high output enables. +----------+ /1OE |1 +--+ 48| 2OE 1Y1 |2 47| 1A1 1Y2 |3 46| 1A2 GND |4 45| GND 1Y3 |5 44| 1A3 1Y4 |6 43| 1A4 VCC |7 42| VCC 2Y1 |8 41| 2A1 2Y2 |9 40| 2A2 GND |10 39| GND 2Y3 |11 38| 2A3 2Y4 |12 7416 37| 2A4 3Y1 |13 241 36| 3A1 3Y2 |14 35| 3A2 GND |15 34| GND 3Y3 |16 33| 3A3 3Y4 |17 32| 3A4 VCC |18 31| VCC 4Y1 |19 30| 4A1 4Y2 |20 29| 4A2 GND |21 28| GND 4Y3 |22 27| 4A3 4Y4 |23 26| 4A4 /4OE |24 25| 3OE +----------+ [This information is part of the GIICM]