Dual-port synchronous SRAM for shared-memory arbitration
The Infineon CY7C09369V-6AXCT is a 288Kbit synchronous dual-port SRAM organized as 16K words by 18 bits. It provides two independent ports with separate address, data, and control lines, allowing simultaneous read/write access from two bus masters without arbitration logic. The 6.5 ns access time and 100 MHz clock rate support back-to-back transactions in high-throughput systems such as network switches, baseband processors, and multi-core DSP farms.
6.5 ns access time — timing closure for shared buses
The 6.5 ns access time is the window from address assertion to valid data on the bus. At 100 MHz, the cycle period is 10 ns, leaving 3.5 ns of margin for clock skew, PCB trace delay, and setup time at the receiving register. This margin is tight but workable for a single-board design with matched trace lengths; a backplane or cable interconnect will erode it. The synchronous interface eliminates the dead cycles associated with asynchronous dual-port handshaking, so the bus can sustain full-rate transfers when both ports are active.
16K x 18 organization — matching the data bus width
The 18-bit word width maps directly to a 16-bit data bus plus two parity or tag bits, common in telecom framers and packet processors that carry sideband control alongside payload data.
This part is not rated for industrial enclosures, outdoor cabinets, or automotive under-hood locations.