Flash Memory, non volatile memory, memory chip, non-volatile storage

 SST39SF010A Series 5.5 V 1 Mb (128 K x 8) 55 ns SMT Flash Memory - PLCC-32

https://www.futureelectronics.com/p/semiconductors--memory--RAM--nvram--quantum-trap-nvsram/sst39sf010a-55-4i-nhe-t-microchip-7074284