MM74HC640N Logic IC - DIP20 - National Semiconductor - NSC

MM74HC241N Logic IC - DIP20 - National Semiconductor - NSC

MM74HC374N Logic IC - DIP20 - National Semiconductor - NSC

MM74HC573N Logic IC - DIP20 - National Semiconductor - NSC

MM74HC221AN Logic IC - DIP - National Semiconductor - NSC

DM74LS645N Logic IC - DIP20 - National Semiconductor - NSC

MM74HCT373N Logic IC - DIP20 - National Semiconductor - NSC

MM74HCT688N Logic IC - DIP20 - National Semiconductor - NSC