IC TTL/H/L SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDIP16, PLASTIC, DIP-16, Multiplexer/Demultiplexer
IC TTL/H/L SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDIP16, PLASTIC, DIP-16, FF/Latch
IC 74148 SERIES, 8-BIT ENCODER, TRUE OUTPUT, PDIP16, DIP-16, Arithmetic Circuit