128 Mbit NOR Flash — Quad SPI at 108 MHz
It communicates over a Quad SPI interface at up to 108 MHz, which gives it the throughput to shadow code into RAM or hold a firmware image for in-place execution on a serial-memory boot path. The 2.7 V to 3.6 V supply range and -40°C to 85°C industrial temperature grade fit it for outdoor telecom, factory automation, and other extended-temperature enclosures where a non-volatile code store is needed.
Obsolete — plan for a last-time buy or alternate
This part is marked obsolete by the manufacturer. For an existing BOM line, options include a last-time buy or a pin-compatible replacement in the FL-S series that shares the 8-SOIC footprint and Quad SPI interface.
What the 108 MHz Quad SPI means for the bus
The Quad SPI interface at 108 MHz reduces pin count compared to parallel NOR, keeping the package in 8-SOIC.
Package and temperature — board fit and environment
If your system sees sustained ambient above 85°C, you will need a different temperature grade or a different memory technology.