74757 Dual 4-bit open-collector noninverting buffer/line driver. One active low, one active high output enable. +----------+ /1OE |1 +--+ 20| VCC 1A4 |2 19| 2OE 2Y1 |3 18| 1Y1 1A3 |4 17| 2A4 2Y2 |5 74 16| 1Y2 1A2 |6 757 15| 2A3 2Y3 |7 14| 1Y3 1A1 |8 13| 2A2 2Y4 |9 12| 1Y4 GND |10 11| 2A1 +----------+ [This information is part of the GIICM]