72Mbit DDR II+ SRAM at 633 MHz
The CY7C2570XV18-633BZXC is a 72Mbit Synchronous DDR II+ SRAM from Infineon (formerly Cypress), organized as 2M x 36 bits.
633 MHz clock and 2M x 36 organization
The 633 MHz clock rate on the DDR II+ interface means data is transferred on both edges, giving an effective data rate of 1266 MT/s per pin. The 2M x 36 organization provides 72Mbit of storage with a 36-bit-wide data bus, suiting it for high-throughput buffer applications in networking or telecom line cards. The parallel memory interface connects directly to a controller's SRAM port without serialization overhead — the 36-bit bus width matches common network processor or FPGA memory controller widths, reducing glue logic.
