128 Mbit SPI NOR flash for automotive ECU code storage
The Infineon S25FL128SDPMFB010 is a 128 Mbit serial NOR flash from the FL-S family, qualified to AEC-Q100 Grade 1. It stores boot code, calibration maps, and parameter tables in an engine control unit or transmission controller — anywhere the processor boots from serial flash over a 3.3 V SPI bus. In quad-read mode the effective throughput is 264 Mbit/s — enough to shadow the full 128 Mbit image into RAM in under half a second.
Automotive temperature grade and supply rail
An engine-bay ECU that sees 105 °C on a hot-day full-load run still has margin below the silicon junction limit. The lower end covers a 3.0 V rail that has dropped under load — common in automotive power domains shared with sensors and actuators.
Housed in a 16-lead SOIC wide-body package (7.50 mm body width), the S25FL128SDPMFB010 uses a standard footprint shared by many serial NOR flash devices. Supplied in tray packaging, the part is suited for manual pick-and-place during prototype builds or low-volume production. The wide-body SOIC reflows with a standard lead-free profile; no special moisture sensitivity handling beyond the MSL level printed on the reel label.
For new designs the base product number S25FL128 covers multiple speed and temperature grades — verify the specific suffix against your BOM's operating temperature and clock frequency requirements before committing the line item.