SPI eeprom, nonvolatile memory, Fast Parallel EEPROM, fram semiconductor

 FM25L04B Series 4 kb (512 x 8) Serial 3 V F-RAM Memory - SOIC-8

https://www.futureelectronics.com/p/semiconductors--memory--RAM--nvram--fram-mram/fm25l04b-gtr-cypress-8003633