100 MHz synchronous FIFO — 8 ns access, 576K buffer
The CY7C4275V-10ASC is a synchronous FIFO from the CY7C series, organized 32K x 18 for a total of 576 Kbit of storage. It clocks at 100 MHz with an 8 ns access time, meaning the read pointer can present new data every clock cycle at full speed — no wait states for the downstream logic if the pipeline is kept full. The 30 mA max supply current is low enough that a shared 3.3 V rail can feed it without a dedicated regulator, but the 0.5 mm pitch on the 64-LQFP demands a controlled reflow profile — check the MSL before you place it, or it popcorns.
Infineon lists the CY7C4275V-10ASC as obsolete.
Depth/width expandable with programmable flags
The CY7C4275V-10ASC supports expansion in both depth and width — multiple devices can cascade without external logic, which simplifies scaling the buffer for wider data paths or deeper queues. The programmable flags let the system set almost-full and almost-empty thresholds, so the controller can pace reads and writes before the FIFO stalls. Retransmit capability means the FIFO can re-send data from a previous read pointer position — useful in packet-based systems where a dropped word triggers a retry without re-loading the entire buffer from the source.