74ACT520SC Logic IC - SO20 - National Semiconductor - NSC

74F240SC Logic IC - SO20 - National Semiconductor - NSC

74ACTQ244SC Logic IC - SO20 - National Semiconductor - NSC

74F841SC Logic IC - SO24 - National Semiconductor - NSC

74F299WM-SMD Logic IC - SO20 - National Semiconductor - NSC

74VHC273M Logic IC - SO20 - National Semiconductor - NSC

74F164ASC Logic IC - SO14 - National Semiconductor - NSC

74F540N Logic IC - DIP20 - National Semiconductor - NSC