74374 8-bit 3-state D flip-flop. +----------+ +---------------+ /OE |1 +--+ 20| VCC |/OE|CLK| D | Q | Q1 |2 19| Q8 |---+---+---+---| D1 |3 18| D8 | 1 | X | X | Z | D2 |4 17| D7 | 0 | / | 0 | 0 | Q2 |5 74 16| Q7 | 0 | / | 1 | 1 | Q3 |6 374 15| Q6 | 0 |!/ | X | - | D3 |7 14| D6 +---------------+ D4 |8 13| D5 Q4 |9 12| Q5 GND |10 11| CLK +----------+ [This information is part of the GIICM]