Dual-port synchronous SRAM — 64K x 18, 9 ns access
The Infineon CY7C09389V-9AXCT is a 1.152 Mbit synchronous dual-port SRAM organized as 64K words by 18 bits. It provides two independent ports with separate address, data, and control lines, allowing simultaneous read/write access from two bus masters without arbitration overhead. The 9 ns access time and 67 MHz clock frequency support back-to-back pipelined transactions, making it suited for shared-memory buffers in telecom line cards, packet processors, or FPGA bridging where the bus-turnaround penalty of asynchronous dual-port RAM would limit throughput.