512 Mbit NOR flash with Quad I/O — what the clock and interface mean for read throughput
The S25FL512SAGBHVC10 is a 512 Mbit SPI-NOR flash from Infineon's FL-S series, organized as 64M x 8 bits. It communicates over a Quad I/O SPI interface at up to 133 MHz, which means the effective read throughput can reach 532 Mbit/s in quad-output mode — enough to support execute-in-place (XIP) boot for a Cortex-M or RISC-V processor without external RAM.
24-ball BGA (8x6 mm) — rework and board integration
The 24-ball TBGA package measures 8 mm x 6 mm with a 0.80 mm ball pitch — fine enough that a standard hot-air station can rework it if the board has a soldermask-defined pad layout, but tight enough that a misaligned reflow will short adjacent balls. Surface-mount only — no through-hole variant. The BGA footprint demands a 4-layer PCB minimum for signal fan-out; a 2-layer board will struggle to route the Quad I/O signals without vias under the package.