AS8C403601, AS8C401801,128K x 36, 256K x 18, 3.3V .
Alliance Semiconductor
AS8C403601-QC166N - 3.3V Synchronous SRAMS
AS8C403601, AS8C401801,128K x 36, 256K x 18, 3.3V Synchronous SRAMS with ZBT™ Feature,3.3V I/O, burst counter, and Pipelined Outputs Commercial Temper.