Fast asynchronous SRAM for cache and buffer applications
The Infineon CY7C1051DV33-10BAXIT is a 8 Mbit asynchronous SRAM organized as 512K x 16 bits, with a 10 ns access time that keeps bus turnaround tight for cache or data-buffer roles in embedded systems. It runs on a 3V to 3.6V supply and is rated for the -40°C to 85°C industrial temperature range, so it fits outdoor telecom, factory automation, or motor-drive control boards where the ambient can climb. The parallel interface is straightforward to hook up — no clock, no refresh overhead — just address, data, and control lines. The 48-TFBGA package (6x8 mm footprint) is a space-saver, but it does require a PCB with via-in-pad or microvias for routing; not a hand-solder-friendly part.
If you are holding a BOM that calls this part, the replacement search should start now — the 10 ns asynchronous SRAM space has several pin-compatible options from ISSI, Alliance Memory, and Renesas, though none are a drop-in without verifying the footprint and timing.
The 10 ns access time matches the write cycle time, so back-to-back transactions do not stall.