72 Mbit QDR II SRAM at 167 MHz — what it delivers
It clocks at 167 MHz, delivering back-to-back read and write transactions on separate buses — no dead cycles between reads and writes, which is the whole point of the QDR II interface. This part is built for high-throughput buffer applications in networking, telecom line cards, and industrial data acquisition where the bus must sustain full-rate traffic without arbitration stalls.
That means Cypress has ended production; no last-time-buy window remains. No factory lead time applies — the part is what it is on the open market.
The CY7C1514V18-167BZI comes in a 165-ball FBGA (15x17 mm body), surface-mount only. The 1.0 mm ball pitch is standard for this density class; the footprint requires a 165-LBGA land pattern with via-in-pad or microvia escape routing for the 36-bit data bus on both ports. The 167 MHz clock rate demands careful signal-integrity layout — matched trace lengths on the QDR address and data buses, and solid decoupling on the 1.8 V rail within 5 mm of each supply ball pair.