256 Mbit NOR flash for code and parameter storage
The Infineon S25FL256LAGNFN010 is a 256 Mbit NOR flash from the FL-L series, organized as 32M x 8. It communicates over SPI with Quad I/O and QPI support, clocking at 133 MHz. The 2.7 V to 3.6 V supply range and -40°C to 125°C operating temperature suit industrial and automotive environments. The 8-WSON (6x8 mm) package with exposed pad aids thermal transfer.
133 MHz Quad SPI — throughput for XIP and fast boot
The 133 MHz clock rate with Quad I/O delivers read throughput well above single-bit SPI, critical for execute-in-place (XIP) firmware and fast boot sequences in MCU and FPGA systems. The QPI mode reduces command overhead by using the same four I/O lines for address and data, which tightens bus turnaround in shared-SPI topologies.
Mounting and thermal interface
The 8-WSON package with exposed pad requires a thermal via pattern under the pad for effective heat sinking. The pad is electrically connected to ground (substrate); confirm isolation in your layout. The 6x8 mm footprint fits alongside QFN devices on the same reflow profile.