128 Mbit NOR Flash with Quad-SPI — what the 133 MHz clock buys the design
The S25FL128SAGMFIR00: The Quad-SPI mode effectively quadruples the read throughput over standard SPI, making this part a strong choice for execute-in-place (XIP) firmware storage or high-speed code shadowing in embedded systems.
Package and footprint — 16-SOIC wide-body
Housed in a 16-SOIC (0.295", 7.50 mm width) surface-mount package, the S25FL128SAGMFIR00 uses the industry-standard wide SOIC footprint common for serial NOR Flash in this density class. No exposed pad is present, so standard SOIC-16 land patterns apply without thermal via stitching.