ITBx is a family of inverting internal tristate buffers with active low enable. Logic Symbol Truth Table ITBx EN A QN EN A QN EN A QN HXZ L LH LHL Z = High Impedance HDL Syntax Verilog ITBx inst_name (QN, A, EN); VHDL inst_name: ITBx port map (QN, A, EN); Pin Loading Pin Name A EN QN ITB1 1..