Static random access memory, sram memories, parallel SRAM memory

 AS6C62256 Series 256-kbit (32 K x 8) 3.3 V 55 ns CMOS Static RAM - SOIC-28

https://www.futureelectronics.com/p/semiconductors--memory--RAM--static-ram--asynchronous/as6c62256-55sintr-alliance-memory-2446300