7425642 8-bit open-collector inverting bus transceiver. Enable and direction pins control output enables. Increased drive to drive 25O bus. +----------+ A1 |1 +--+ 24| DIR GND |2 23| B1 A2 |3 22| B2 A3 |4 21| VCC GND |5 20| B3 A4 |6 7425 19| B4 A5 |7 642 18| B5 GND |8 17| B6 A6 |9 16| VCC A7 |10 15| B7 GND |11 14| B8 A8 |12 13| /OE +----------+ [This information is part of the GIICM]