It clocks at 400 MHz on a parallel interface, delivering back-to-back read/write throughput without dead cycles — the DDR II+ bus-turnaround eliminates the idle cycle that standard synchronous SRAMs require between read and write.
Obsolete – sourcing the CY7C2570KV18-400BZC now
No official successor has been recorded under the CY7C2570KV18 base number. The 165-FBGA footprint (13x15 mm) and 1.8 V supply rail are the constraints for any pin-compatible substitute search.
The 165-LBGA (13x15 mm) is a fine-pitch BGA. The tray shipping medium means parts arrive in matrix trays, not tape-and-reel — plan for pick-and-place nozzle changeover if your line is set up for tape-fed only.