INTEGRATED CIRCUITS 74ALVCH16821 20-bit bus-inter.
74ALVCH16821 - 20-bit bus-interface D-type flip-flop
SN74ALVCH16821 - 3.3-V 20-BIT BUS-INTERFACE FLIP-FLOP (Rev. F)
HD74ALVCH16821 - 3.3-V 20-bit Bus Interface Flip Flops with 3-state Outputs
74ALVCH16821DGG - 20-bit bus-interface D-type flip-flop