27C256-20 Integrated Circuit - DIP28M - Intel

27C256-10 Integrated Circuit - DIP28M - Texas Instruments

27C256-70 Integrated Circuit - DIP28M - Generic Make

27C128-25 Integrated Circuit - DIP28M - Microchip Technology

27C010-25 Integrated Circuit - DIP28M - Generic Make

27C256-15FA Integrated Circuit - DIP28 - Generic Make

NM27C512Q150 Integrated Circuit - DIP28M - National Semiconductor - NSC

27C256-25N Integrated Circuit - DIP28 - Signetics