Adesto Technologies, AT25DF021A-SSHN-T, Flash Memory, Serial NOR Flash (SPI) Memory

 Contains a wide range of programmable flash memories from several chip manufacturers that can be used for a flash memory card, USB flash, compact flash, computer flash and flash memory drives or for programming any other flash memory storage type. 

https://www.futureelectronics.com/p/memory--flash--norflash/at25df021a-sshn-t-adesto-technologies-4066594