The Infineon CY7C006A-20AXCT is a 128Kbit dual-port asynchronous SRAM organized as 16K x 8 bits, designed for systems where two independent controllers or processors need to share a common memory block without bus contention. The dual-port architecture provides two separate address, data, and control ports, each with its own arbitration logic to resolve simultaneous access to the same memory location. The write cycle time matches the read access at 20 ns, so back-to-back writes to the same port complete at the same rate.
Supply and temperature — 5 V commercial-grade only
It will not run from a 3.3 V rail, so a level translator or a separate 5 V supply is needed if the rest of the board is 3.3 V.
Housed in a 64-TQFP (14x14 mm) package with 0.8 mm pitch, the CY7C006A-20AXCT is a surface-mount part requiring a standard QFP footprint. The 64-LQFP / 64-TQFP package is common across the CY7C006 family, so a layout designed for one density variant can accept others with the same pinout.
For BOM lines that need dual-source assurance, the CY7C006 family includes multiple speed and package variants sharing the same base architecture — qualifying a -20AXCT on the board leaves the option to swap to a -25AXCT or -35AXCT if lead times shift, provided the access time budget allows the slower grade.