Dual-port SRAM for shared-memory designs
The Infineon CY7C027V-25AC is a 512Kbit asynchronous dual-port SRAM organized as 32K words by 16 bits. Its dual-port architecture allows two independent bus masters — two processors, a processor and a DMA controller, or a processor and an FPGA — to access the same memory array simultaneously through separate address, data, and control ports. The 25 ns access time means the memory can complete a read or write cycle in 25 ns from address valid. The parallel interface connects directly to standard microprocessor address and data buses. Packaged in a 100-TQFP (14x14 mm) with surface-mount footprint, it is designed for automated assembly.
The 25 ns access time and write cycle time allow the SRAM to deliver data in a single bus cycle without wait states, provided the processor's address-to-data setup time budget accommodates the memory's access time plus PCB trace delay.
The CY7C027V-25AC is officially classified as Obsolete by the manufacturer. Sourcing is limited to surplus inventory held by independent distributors and brokers. Buyers should verify date codes and condition with the supplier.
It is a surface-mount component intended for reflow soldering.