Industrial temperature and Quad I/O throughput
The S25FL256SAGBHVD00: The SPI Quad I/O interface uses four data lines for reads and writes, cutting the number of bus cycles compared to standard SPI. This matters when the host MCU boots directly from flash or streams large look-up tables. The 2.7 V minimum supply means the part stays operational through a 3.3 V rail that droops under load — no brown-out reset until the rail drops below that floor.
BGA footprint and board-level integration
The 24-BGA package (6x8 mm) has a 0.80 mm ball pitch. The inner two rows of balls require via-in-pad or microvias on a standard 4-layer board — the outer rows fan out easily on the top layer. The supplier device package code is 24-BGA (6x8), so the land pattern is consistent across the FL-S family. No exposed thermal pad — the BGA relies on the PCB copper planes for heat spreading.