GM76C88L15 Integrated Circuit - DIP28 - Goldstar - LG Electronics

CAT28C256P15 Integrated Circuit - DIP28 - CSI Electronics

6840 Integrated Circuit - DIP28 - Generic Make

M27C256B10F1L Integrated Circuit - DIP28 - ST Microelectronics - STM

ETL9344 Integrated Circuit - DIP28 - Generic Make

M5M27C512AK15 Integrated Circuit - DIP28 - Generic Make

IS61C256AH-15N Integrated Circuit - DIP28 - ISSI

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