74833 8-bit 3-state noninverting bus transceiver with parity generator/checker and parity register. +----------+ /OEA |1 +--+ 24| VCC A1 |2 23| B1 A2 |3 22| B2 A3 |4 21| B3 A4 |5 20| B4 A5 |6 74 19| B5 A6 |7 833 18| B6 A7 |8 17| B7 A8 |9 16| B8 /ERROR |10 15| PAR /CLR |11 14| /OEB GND |12 13| CLK +----------+ [This information is part of the GIICM]