4000 series cmos logic family nxp hef4028bp 652 this nxp cd4028b bcd to decimal decoder ic is available in a dil 16 package a part of the cmos 4000 range it can be used as a 4 bit bcd to decimal decoder a 4 bit bco to octal decoder with active low enable or an 8 output y0 to y7 inverting demultiplexer nxp hef4028bp 652 bcd to decimal decoder