S27C512-15FA SemiConductor - DIP28 - Generic Make

NMC27C256BQ200 Integrated Circuit - DIP28 - National Semiconductor - NSC

NM27C256Q150 Integrated Circuit - DIP28 - National Semiconductor - NSC

NMC27C256QE250 Integrated Circuit - DIP28 - National Semiconductor - NSC

NMC27C256BQ250 Integrated Circuit - DIP28 - National Semiconductor - NSC

NMC27C64Q250 Integrated Circuit - DIP28 - National Semiconductor - NSC

PIC16C73A10SP SemiConductor - DIP28 - Microchip Technology

X28C64 Semiconductor - DIP28 - Xicor