Synchronous dual-port SRAM — 576 Kbit, 5 ns access
The Infineon CY7C09569V-100AXC is a 576 Kbit synchronous dual-port SRAM organized as 16K × 36. It operates at a 100 MHz clock frequency with a 5 ns access time, running from a 3.0 V to 3.6 V supply. This class of memory is used in high-throughput data-buffering applications where two independent ports allow simultaneous read and write access — common in telecom line cards, network switches, and multiprocessor shared-memory systems.
The 5 ns access time at 100 MHz clock means the SRAM can deliver data within one clock cycle from the address latch. For a design running a 100 MHz bus, this leaves roughly 5 ns of timing margin after accounting for clock-to-output delay and setup times — enough for a single fan-out to an FPGA or ASIC without inserting wait states. The synchronous interface eliminates the dead cycles that asynchronous dual-port SRAMs incur on bus-turnaround, so back-to-back reads and writes sustain full throughput.