IC TTL/H/L SERIES, 4-BIT ADDER/SUBTRACTOR, PDIP16, PLASTIC, DIP-16, Arithmetic Circuit
IC TTL/H/L SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP16, PLASTIC, DIP-16, Counter
IC TTL/H/L SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP16, PLASTIC, DIP-16, Counter