256 Mbit NOR flash, 133 MHz quad-I/O, AEC-Q100
The Infineon S25FL256SAGMFB010 is a 256 Mbit SPI NOR flash from the FL-S series, organised as 32M x 8 bits and clocked at 133 MHz over a Quad I/O interface. That clock rate means a single quad-read burst can push data at roughly 66 MB/s — enough to feed a Cortex-M7 executing from XIP without wait-state bottlenecks at moderate core speeds. It is qualified to AEC-Q100 Grade 2, which means the die and package have passed the full automotive reliability stress battery: high-temperature operating life, temperature cycling, ESD, and latch-up. The -40 to 105 °C operating range covers under-hood and cabin electronics in passenger vehicles and commercial trucks.
Active production, ROHS3, no successor needed
ROHS3 compliant and the FL-S series is Infineon's mainstream automotive NOR flash family.
Board-fit and footprint notes
The 16-SOIC wide-body package (7.50 mm body width, 0.295-inch pitch) is a standard JEDEC outline. The land pattern matches the footprint used by other 256 Mbit SPI NOR parts in the same package — if your layout already has a 16-SOICW footprint for a different vendor's flash, this part drops in without a board spin. The tray packaging means the parts arrive in anti-static trays, not tape-and-reel — factor that into your pick-and-place feeder setup if you are running a reel-only line.