74173 4-bit 3-state D flip-flop with reset, dual clock enables and dual output enables. +----------+ /OE1 |1 +--+ 16| VCC /OE2 |2 15| RST Q0 |3 14| D0 Q1 |4 74 13| D1 Q2 |5 173 12| D2 Q3 |6 11| D3 CLK |7 10| /CLKEN1 GND |8 9| /CLKEN2 +----------+ [This information is part of the GIICM]