256K X 36, 512K X 18 3.3V Synchronous SRAMs AS8C80.
Alliance Semiconductor
AS8C801800 - 3.3V Synchronous SRAMs
256K X 36, 512K X 18 3.3V Synchronous SRAMs AS8C803600 3.3V I/O, Burst Counter AS8C801800 Pipelined Outputs, Single Cycle Deselect Features 256K x 36,.
