UPD27C1001A15 Integrated Circuit - DIP32 - NEC

UPD27C2001D-15 Integrated Circuit - DIP - NEC

NM27C010QE200 Integrated Circuit - DIP32 - National Semiconductor - NSC

NM27C010Q200 Integrated Circuit - DIP32 - National Semiconductor - NSC

W27C020-70Z INTEGRATED CIRCUIT DIP-32 ''UK COMPANY SINCE1983 NIKKO''

UPD416C3 Integrated Circuit - DIP - NEC

UPD27C1024D15 Integrated Circuit - DIP40 - NEC

UPD6145C Integrated Circuit - Standard Custodia - NEC