PC16552DV Integrated Circuit - PLCC - National Semiconductor - NSC

LM358AH Integrated Circuit TO99 OP AMP National Semiconductor

MM5437 Integrated Circuit - DIP - National Semiconductor - NSC

NS16550AFV Integrated Circuit - PLCC44 - National Semiconductor - NSC

LM1972N Integrated Circuit - DIP20 - National Semiconductor - NSC

MM5260D Integrated Circuit - DIP16 - National Semiconductor - NSC

PAL16H2A2 Integrated Circuit - DIP20 - National Semiconductor - NSC

NMC9345N Integrated Circuit - DIP8 - National Semiconductor - NSC