The Infineon S25FL256SAGMFB003 is a 256 Mbit automotive-grade NOR Flash memory from the FL-S family, qualified to AEC-Q100. This is the part you specify when the ECU needs a fast, reliable code-storage or data-logging NOR Flash that survives under-hood thermal cycling and meets OEM PPAP documentation requirements.
The product status for S25FL256SAGMFB003 is Active. That means Infineon continues to manufacture and support this order code — no last-time-buy notice, no EOL window. For a production BOM line that needs multi-year supply assurance, this is the right posture.
Package and mounting — 16-SOIC wide body
It is surface-mount only. The 0.295-inch (7.50 mm) width is the SOIC-wide variant — confirm the footprint matches your board's land pattern; the standard narrow SOIC (3.9 mm or 4.9 mm) will not fit.