The S25FL256LAGBHN030 is a 256 Mbit non-volatile NOR Flash from Infineon's FL-L series, organised as 32 M x 8 bits. It uses the SPI Quad I/O and QPI interface, clocked at 133 MHz, which gives the firmware engineer a read throughput ceiling high enough for execute-in-place (XIP) boot from a Cortex-M or similar MCU without a separate DRAM cache.
Infineon lists this part as Obsolete. No further production runs are planned. If your BOM still calls out this order code, the only sourcing channel is the independent surplus and aftermarket supply chain — sealed reels with consistent date-codes from factory excess lots, not catalog stock. The 24-BGA package (6x8 mm) is a 24-ball footprint. A tray quantity is the original Infineon packaging format; any lot we source will be inspected for original tray or reel condition and date-code spread before quoting.
Key parametrics for the design engineer
Clock frequency of 133 MHz on the Quad I/O interface yields a theoretical read throughput of 532 Mbps (four data lines at 133 MHz). That is enough to feed a 200+ MHz Cortex-M core without stalling on instruction fetches, provided the flash wait states are configured correctly. The memory is organised as 32 M x 8 bits — 256 Mbit total. For a typical firmware image of 2–4 MB, this leaves headroom for a second bootloader, over-the-air update staging area, and a file system for configuration logs.