The Infineon CY7C1380F-167BGCT is a 512K×36 SyncBurst SRAM — a high-speed synchronous memory designed for cache, buffer, and lookup-table applications in networking and telecom equipment where deterministic read-write cycles at clock rates up to 167 MHz are required. The 3.4 ns access time keeps the bus-turnaround tight, which matters for back-to-back transactions in a pipelined memory controller.
Obsolete — sourcing reality for this SRAM
167 MHz and 3.4 ns — what they mean for the bus
The 167 MHz clock rate and 3.4 ns access time are the headline timing specs. The 512K×36 organization (18 Mbit total) gives a 36-bit wide data bus.
