166 MHz synchronous SRAM — what the speed grade buys you
The CY7C1362A-166AC: This is a single-data-rate (SDR) pipeline-burst part — every clock edge can initiate a read or write, and the 3.5 ns access means the first data appears one cycle after the address is latched. The 166 MHz clock rate suits it for L2 cache, network buffer memory, or any high-throughput parallel bus where the controller expects zero-wait-state back-to-back transactions at that speed.
Package and assembly — 100-LQFP, bagged
The supplier device package is 100-TQFP (14x20) — same footprint, different supplier code. The listed package field says "Bag", which is the shipping medium, not the case.