550 MHz QDR II+ — the throughput ceiling
The CY7C2263KV18-550BZXI is a 36 Mbit synchronous SRAM using the QDR II+ architecture, clocked at 550 MHz. That clock rate sets the data-rate ceiling on the parallel interface — at 550 MHz the read and write ports each deliver a burst of two 18-bit words per cycle, so the peak bandwidth is well north of 2 GB/s. The 2M x 18 organization means the address bus is 21 bits wide; the data bus is 18 bits per port. That voltage window is tight — the board regulator needs to hold 1.8V ± 100 mV under load transients to stay inside the datasheet limits.
Package — 165-ball FBGA, 13x15 mm
The ball pitch is 0.80 mm — a 4-layer PCB with via-in-pad or microvia fan-out is typical for routing the 18-bit data buses on both ports plus the address and control lines. The tray packaging means it ships in a JEDEC-standard matrix tray for pick-and-place.