CD4502 Texas Instruments CD4502 Strobed Hex Inverter/Buffer 4000 Series PDIP-16, CDIP-16, SOIC-16, SO-16 Datasheet
CD4053 Fairchild Semiconductor CD4053 Triple 2-channel Multiplexer/Demultiplexer 4000 Series SOIC, SOP, PDIP Datasheet
CD40257 Texas Instruments CD40257-Quad 2-line to 1-line data selector/multiplexer 4000 Series PDIP-16, CDIP-16, SOIC-16 Datasheet
CD4026 Texas Instruments CD4026 Decade Counters/Dividers 4000 Series PDIP-16, SO-16, TSSOP-16 Datasheet