It runs at a 300 MHz clock, delivering back-to-back read/write throughput without dead cycles between bus turns — the key advantage of the DDR II interface over standard synchronous SRAM. This part targets high-bandwidth, low-latency buffer applications in networking line cards, telecom switches, and high-end test equipment where the memory must keep pace with a 300 MHz data bus.
At 300 MHz, the DDR II interface transfers data on both clock edges, so the effective data rate is 600 MT/s per I/O. That bandwidth is what makes this part a fit for designs that need to stream large packets or samples without stalling the controller.
No hand-soldering this one; it is a surface-mount-only part.
Cypress (now part of Infineon) no longer manufactures the CY7C1518KV18-300BZI.