S73WS256N Overview
.. S73WS256N Based MCPs Stacked Multi-Chip Product (MCP) 512/256 Megabit (32M/16M x 16-bit) CMOS 1.8 Volt-only, Simultaneous Read/Write, Burst Mode Flash Memory with 256/128 Megabit (4M/2M x 16-bit x 4 Banks) Mobile SDRAM on Shared Data Bus Data Sheet ADVANCE.