N7409A ; IC Logic-TTL Quad-2-Input-AND-Gate-Open-Collector-Output, DIP-14 N7409A.pdf View Details Compare
LS165A_SN74LS165AD ; IC Logic-TTL Parallel-Load-8-Bit-Shift-Register, SO-16 LS165A_SN74LS165AD.pdf View Details Compare
HD74LS83AP ; IC Logic-TTL 4-bit-Binary-Full-Adder-with-Fast-Carry, DIP-16 HD74LS83AP.pdf View Details Compare
--- SN74LS266N ; IC Logic-TTL Quad-2-Input-Exclusive-NOR-Gate-Open-Collector, DIP-14 SN74LS266N.pdf View Details Compare