CP82C86H Integrated Circuit - DIP20 - Harris Semiconductor

CY7C63001A Integrated Circuit - DIP20 - Cypress Semiconductor

MM74C923N Integrated Circuit - DIP20 - National Semiconductor - NSC

MC54HC273AJ Integrated Circuit - DIP20 - Motorola Semiconductor

MB81C4256-10P Integrated Circuit - DIP20 - Fuji Semiconductor

CAT28C16AP20 Integrated Circuit - DIP24 - Catalyst Semiconductor

DS75160AN Integrated Circuit - DIP20 - National Semiconductor - NSC

DM81LS96AN Integrated Circuit - DIP20 - National Semiconductor - NSC