Dual-port SRAM at 133 MHz — shared-memory arbitration
The Infineon CY7C0851AV-133BBC is a 2 Mbit synchronous dual-port SRAM organized as 64K x 36 bits. It provides two independent access ports with arbitration logic, allowing two bus masters to read or write the same memory array without external arbitration logic. The 133 MHz clock frequency sets the arbitration handshake timing and the back-to-back read/write throughput. This part is used in shared-memory applications such as multiprocessor buffers, network packet queues, and DSP co-processor mailboxes — any design where two controllers need fast, contention-free access to a common data pool.
172-FBGA (15x15) — footprint and routing
The part is supplied in a 172-ball FBGA package measuring 15x15 mm.