54F521DMQB Integrated Circuit - DIC20 - National Semiconductor - NSC

CD54HCT373F Integrated Circuit - DIC20 - Harris Semiconductor

54LS112DMQB Integrated Circuit - DIC - National Semiconductor - NSC

54F174DMQB Integrated Circuit - DIC - National Semiconductor - NSC

54AC138DMQB Integrated Circuit - DIP - National Semiconductor - NSC

54F544SDMQB Integrated Circuit - DIP24 - National Semiconductor - NSC

54ACT244DMQB Integrated Circuit - DIP - National Semiconductor - NSC

54F399DMQB Integrated Circuit - DIP - National Semiconductor - NSC