NVRAM, Nonvolatile SRAM (NVSRAM), SST39SF010A-55-4I-NHE-T, Microchip

 A full selection of non volatile SRAM chips from several manufacturers that can be used to design circuits that require non volatile RAM memories (NV RAM memories),

https://www.futureelectronics.com/c/semiconductors/memory--RAM--nvram/products