128 Mbit NOR Flash – SPI Quad I/O, 104 MHz
The S25FL129P0XMFI003 is a 128 Mbit NOR Flash memory from Infineon's FL-P series, organized as 16 M x 8 bits. The 16-SOIC package (0.295-inch body width, 7.50 mm) is a common footprint for code-storage Flash in embedded systems. Page program time is 3 ms typical; word program time is 5 µs typical.
Obsolete – Plan for Last-Time Buy or Replacement
Infineon lists the S25FL129P0XMFI003 as Obsolete. No official successor part number is provided in the available records. For existing BOM lines, a last-time buy or a pin-compatible alternative from the same FL-P family should be evaluated immediately. The base product number S25FL129 covers multiple speed and temperature variants in the 16-SOIC package. Cross-referencing the full order code against current Infineon Flash selector guides is recommended to identify a drop-in replacement with equivalent density, interface, and timing.
Because the part is obsolete, standard distributor stock is depleted. Sourcing through independent channels is the primary route. The 16-SOIC package is moisture-sensitive; verify the MSL level before opening the reel.