PAL20L8-10-2PC SemiConductor - DIP24 - Generic Make

W78E58B-24 Semiconductor - DIP40 - Winbond Electronics Corp

PT2388 SemiConductor - DIP24 - Princeton Technology

W29C020CP90Z SemiConductor - PLCC32 - Winbond Electronics Corp

W27E040-12 SemiConductor - DIP32 - Winbond Electronics Corp

PAL20L10ANC Integrated Circuit - DIP24 - National Semiconductor - NSC

W29C020CP90B Integrated Circuit - PLCC32 - Winbond Electronics Corp

W27E010-70 SemiConductor - DIP32 - Winbond Electronics Corp