COM20020P Integrated Circuit - DIP24 - Standard Microsystems - SMC

COM8502 Integrated Circuit - DIP40 - SMC

ULN2823A Integrated Circuit - DIP18 - Allegro MicroSystems

COM9026 Semiconductor - DIP40 - Standard Microsystems - SMC

FDC9229BT Integrated Circuit - DIP20 - Standard Microsystems - SMC

UCN5818AF Integrated Circuit - DIP40 - Allegro MicroSystems

COM9064 Integrated Circuit - DIP40 - SMC

UCN5816A Integrated Circuit - DIP28 - Allegro MicroSystems