The S25FL128SAGMFBR00 is a 128 Mbit NOR flash memory from the FL-S series, organized as 16M x 8 bits. It uses the SPI Quad I/O interface running at 133 MHz, which delivers read throughput high enough for execute-in-place (XIP) code storage in automotive microcontrollers. NOR flash is preferred for XIP because it provides random-access read with low latency — the memory controller fetches instructions directly from the flash without copying code to RAM first. The 133 MHz Quad I/O interface reads at up to 66 MB/s, keeping the CPU fed during boot and real-time execution.
AEC-Q100 qualification and temperature range for under-hood reliability
AEC-Q100 Grade 1 qualification means this part is tested to the automotive stress profile: -40 to +125 °C ambient with extended reliability screening for early-life failure, latch-up, and ESD. The operating temperature range of -40 to 105 °C (TA) covers the cabin and engine-bay environments with margin. The 2.7–3.6 V supply range is compatible with standard 3.3 V automotive rails. The lower 2.7 V minimum ensures the flash stays operational during a cold-crank dip, which is typical for automotive power systems.
The tray packaging is typical for production volumes; reel options may be available depending on the supplier.