What this NOR Flash brings to an automotive ECU bill
It is AEC-Q100 qualified — not just a commercial part dressed up with a wider temp range — so the PPAP package an OEM auditor expects is on file. The memory is organized as 32M x 8 bits, accessed through a SPI interface that supports Quad I/O and QPI protocols at a clock frequency of 133 MHz.
133 MHz Quad SPI — what it means for firmware throughput
A 133 MHz Quad SPI read sustains roughly 66 MB/s theoretical throughput, enough to feed an ARM Cortex-M7 or R5 core executing in place (XIP) without stalling on code-fetch. The interface supports both Quad I/O (four data lines plus clock) and QPI (command also over four lines), cutting command overhead on back-to-back reads. This matters when the ECU boots from Flash or logs sensor data at high rate.
The 16-SOIC footprint is common across the FL-L family, so a layout can be reused across density options without a board spin.