133 MHz Quad I/O — the read throughput ceiling
The S25FL128SAGBHI200: The SPI Quad I/O interface clocks at 133 MHz, delivering a sustained read throughput of roughly 66 MB/s in quad-output mode. That bandwidth is enough to support XIP (eXecute-In-Place) for firmware stored on the flash, avoiding a RAM shadow copy for moderate-sized code images. The 24-BGA package (8x6 mm body) uses a 0.80 mm ball pitch — a 4-layer PCB with via-in-pad or microvia fan-out is typical for routing all eight signal lines plus the supply and ground balls. The supplier device package is 24-BGA (8x6).
Industrial temperature grade and deployment context
The NOR flash technology retains data across the full range without refresh. ROHS3 compliant — the part ships in a tray, compatible with standard pick-and-place and reflow profiles for the 24-BGA package.
Peer variants in the FL-S family — package and temperature trade
The S25FL128SAGBHI200 shares the same 128 Mbit density, 133 MHz clock, and SPI Quad I/O interface with the S25FL128SAGBHIA10 and S25FL128SAGBHIZ00 — both also in 24-BGA. The S25FL128SAGMFV010 moves to an SOIC-8 package and extends the temperature range to -40°C to +105°C, which matters for under-hood or high-ambient enclosures.