It uses a SPI interface with Quad I/O and QPI support, clocked at 108 MHz. That clock rate translates to a sustained read throughput that can keep a Cortex-M or RISC-V core fed for execute-in-place (XIP) firmware, without stalling for cache fills. The memory is non-volatile, so the boot image stays put through power cycles.
Supply range and temperature — where this part survives
Lifecycle status — still a current-production part
The base product number is S25FL064, and the full order code includes the package and temperature suffix.
