M27C256-10F1 Semiconductor - DIC28 - ST Microelectronics - STM

M27C256B-15F6 Integrated Circuit - DIC28 - ST Microelectronics - STM

M27C256B25F6 Integrated Circuit - DIC28 - ST Microelectronics - STM

27C64 Integrated Circuit - DIC28 - ST Microelectronics - STM

M27128A25F1 Integrated Circuit - DIC28 - ST Microelectronics - STM

M2764A25F1 Integrated Circuit - DIP28 - ST Microelectronics - STM

M27C2568-10F1 Integrated Circuit - Standard Case - ST Microelectronics - STM

M27128A-F1 Integrated Circuit - DIC28M - ST Microelectronics - STM