128 Mbit NOR Flash with Quad-SPI — what the specs mean for the BOM
It runs at a 104 MHz clock frequency, which with Quad I/O gives a read throughput that can keep an execute-in-place (XIP) Cortex-M or RISC-V core fed without wait states when the controller's prefetch buffer is sized right.
That means Cypress (now Infineon) has stopped production; no last-time-buy window remains open. The only channel is independent distribution — surplus inventory, factory overruns, or pulled stock from closed projects. Every unit we source gets date-code and marking verification against the manufacturer's known etch patterns and a decap/X-ray check if the lot size warrants it. The 24-BGA package is harder to authenticate than a TSOP because the die is hidden — we always X-ray the ball array to confirm it matches the Cypress reference.
The 85°C ceiling means derating is needed if the Flash sits near a hot CPU or power stage — keep the local ambient below 75°C to stay inside the operating margin.