The Infineon (formerly Cypress) CY7C09269V-12AC is a 256 Kbit synchronous dual-port SRAM organized as 16K x 16 bits. It gives two independent systems simultaneous read/write access to the same memory array through separate left and right ports, each with its own address, data, and control lines. The 12 ns access time and 50 MHz clock rate place it in the mid-speed tier for dual-port SRAMs — fast enough to bridge two moderate-speed processors or ASICs without wait-state insertion, but not the highest-throughput option in the family.
The 12 ns access time means data appears on the bus within 12 ns worst-case after the address is valid. At a 50 MHz clock, that leaves margin for setup and hold before the next clock edge.
Infineon (Cypress) no longer manufactures this part, and no direct factory replacement has been designated in the official records. Buyers should verify stock position before committing to a production schedule.
Package and temperature grade — design constraints
Housed in a 100-TQFP (14x14 mm) package, the CY7C09269V-12AC is a surface-mount device intended for reflow assembly. This limits the part to indoor, temperature-controlled environments.