SPI F-RAM, nvram ssd, Surface Mount Serial F-RAM Memory, nvram storage

 FM28V Series 256 Kb (32 K x 8) 3.3 V 70 ns Parallel F-RAM Memory - SOIC-28

https://www.futureelectronics.com/p/semiconductors--memory--RAM--nvram--fram-mram/fm28v020-sgtr-cypress-9067455