64 Mbit serial NOR Flash with 108 MHz Quad-SPI
The Infineon S25FL064LABMFI010 is a 64 Mbit serial NOR Flash memory from the FL-L family, organized as 8M x 8 bits.
At 108 MHz in Quad I/O mode, the read throughput reaches roughly 54 MB/s, enough for execute-in-place (XIP) boot from Flash without a separate RAM shadow for many MCU cores. The QPI mode reduces command overhead by using the same four I/O lines for address and data, improving random-read efficiency.