Sram chip, sram memory, CMOS Static RAM, random-access memory, Sram memory card

 AS6C62256 Series 256-kbit (32 K x 8) 3.3 V 55 ns - PDIP-28

https://www.futureelectronics.com/p/semiconductors--memory--RAM--static-ram--asynchronous/as6c62256-55pcn-alliance-memory-7029234