MM74HC640N Logic IC - DIP20 - National Semiconductor - NSC

MM54HC245J Integrated Circuit - DIP20 - National Semiconductor - NSC

MM74HC241N Logic IC - DIP20 - National Semiconductor - NSC

MM74HC374J Logic IC - DIP20 - National Semiconductor - NSC

MM54HC374J883C Integrated Circuit - DIP20 - National Semiconductor - NSC

MM74C923N Integrated Circuit - DIP20 - National Semiconductor - NSC

MM74C374J Integrated Circuit - DIP20 - National Semiconductor - NSC

MM74HC374N Logic IC - DIP20 - National Semiconductor - NSC