The MM54HC173 MM74HC173 is a high speed TRI-STATE QUAD D TYPE FLIP-FLOP that utilizes advanced silicongate CMOS technology It possesses the low power consumption and high noise immunity of standard CMOS integrated circuits and can operate at speeds comparable to the equivalent low power Schottky device The outputs are buffered allowing this circuit to drive 15 LS-TTL loads The large output drive capability and TRI-STATE feature make this part ideally suited for interfacing with bus lines in a bus oriented system