The CY7C1512V18-167BZXC is a 72 Mbit synchronous SRAM organised as 4M x 18 bits, using the QDR II (Quad Data Rate) architecture with a separate read and write port. The 167 MHz clock frequency means the memory delivers a peak data rate of 334 million transfers per second per port — the QDR II interface eliminates the bus-turnaround penalty of common-I/O SRAM, so a network processor or packet buffer can read and write on every clock edge without dead cycles. The parallel interface and 1.7 V to 1.9 V supply rail place it in the low-voltage synchronous SRAM class, designed for high-throughput applications where a DDR or QDR bus matches the controller's memory controller natively.
The supplier device package (165-FBGA) is the same footprint as other Cypress/Infineon 72 Mbit QDR II parts, so a board already laid out for a sibling density can accept this part without a respin — provided the supply voltage and temperature grade match.
Temperature grade and environment
It is not qualified for industrial or automotive ambient extremes — a design requiring -40°C to +85°C operation needs the industrial-grade variant from the same family.
Lifecycle reality — obsolete and how to source it
For existing BOM lines that require this exact part number, the supply path runs through independent distribution and surplus channels. Date-code provenance and lot traceability should be verified before committing to a production run.