108 MHz Quad-SPI NOR Flash for automotive code storage
The Infineon S25FL064LABMFA011 is a 64Mbit NOR Flash memory from the Automotive FL-L series, qualified to AEC-Q100. It uses a Quad-SPI (Quad I/O and QPI) interface clocked at 108 MHz, which gives the host controller a fast read path for execute-in-place (XIP) code shadowing or parameter logging without stalling the bus.
For a production program that expects to run for several years, this part carries no near-term obsolescence risk.
8-SOIC footprint and supply rails
The 2.7V to 3.6V supply is standard for 3.3V SPI buses; no level shifting needed when the host MCU runs at the same rail. The Quad I/O interface uses the same four data pins for command, address, and data, which keeps the PCB trace count low.