32 Mbit NOR Flash with 108 MHz Quad SPI — the throughput ceiling
The Infineon S25FL132K0XNFB010 is a 32 Mbit NOR Flash organized as 4M x 8, accessed via a Quad SPI interface clocked at 108 MHz — the sustained read throughput is sufficient for shadowing code into RAM at boot or hosting over-the-air firmware update images.
Obsolete — sourcing through surplus and broker channels
For existing BOM positions, availability is limited to independent surplus and broker inventory; quantities are lot-specific and confirmed at RFQ. No pin-compatible direct replacement is listed from the original manufacturer.
8-WSON exposed-pad package — thermal and layout notes
Housed in an 8-WDFN exposed-pad package (supplier device package 8-WSON 5x6 mm), the part requires a thermal land on the PCB to sink heat from the die — the exposed paddle must be connected to ground plane with adequate via array for thermal dissipation. The 3 ms page write cycle time means firmware writes to sequential pages accumulate; budget the total erase-and-write time when planning in-field update sequences.