128 Mbit NOR Flash in a 24-BGA — what the specs mean for your board
It speaks SPI with Quad I/O support, which means you can clock data in and out on four I/O lines instead of one, quadrupling the read throughput over a standard SPI bus. The 133 MHz clock frequency translates to a theoretical 532 Mbps read rate in Quad mode — enough to feed a high-resolution display buffer or support execute-in-place (XIP) code shadowing without stalling the host MCU. The 8 ns access time is the page-read latency from the first address strobe to valid data out. In practice, that means the part can keep up with a fast cache-line fill or a tight polling loop without inserting wait states on a moderate-speed bus.
Package and temperature — mounting and environment decisions
Housed in a 24-ball BGA (8 mm x 6 mm body, 24-BGA), this part is a surface-mount device that needs a reflow profile, not a soldering iron.
The base product number S25FL128 covers a family of density and package variants; the BHID00 suffix pins down the 24-BGA, industrial temperature, and Quad I/O configuration.