Random-Access Memory, Non-Volatile SRAMs, SRAM memory, non volatile sram,

 CY62167DV30 Series 16 Mb (1 M x 16) 2.2 - 3.6 V 55 ns Static RAM - TSOP-48

https://www.futureelectronics.com/p/semiconductors--memory--RAM--static-ram--asynchronous/cy62167dv30ll-55zxi-infineon-9817651