256 Mbit NOR Flash for code shadowing and XiP
The S25FL256LAGBHV030: Quad-SPI interface (Quad I/O and QPI) clocked at 133 MHz, organized as 32M x 8.
At 133 MHz in Quad I/O mode, the S25FL256LAGBHV030 delivers a sustained read throughput that keeps a Cortex-M7 or similar high-end MCU fed without wait states on code fetches. The QPI mode reduces the command overhead by using the same four I/O lines for address and data, which tightens the latency on random reads. If your design already uses a Quad-SPI controller, this part matches the speed grade without needing a faster PLL or extra clock dividers.
24-BGA footprint — routing notes
24-TBGA package (6x8 mm body) is a fine-pitch BGA.