That means Infineon has stopped production — no last-time-buy window remains open through the factory channel. For a production line that needs this exact 64Mbit NOR Flash in the 24-TBGA footprint, the only sourcing path is the independent distribution market: surplus, new-old-stock, or broker inventory.
64Mbit NOR Flash with Quad SPI — what the 108 MHz clock buys you
64Mbit NOR Flash organized as 8M x 8, Quad SPI interface at 108 MHz.
The 2.7V to 3.6V supply range is standard 3.3V logic — compatible with most MCU and SoC SPI ports without level translation.
24-TBGA (8x6mm) — footprint and handling notes
The 24-ball TBGA measures 8x6mm. It's a surface-mount BGA, so the PCB needs a solder-paste stencil and an X-ray inspection step post-reflow.
3.3V SPI compatibility — yes, it works
The supply range is 2.7V to 3.6V, so a 3.3V SPI bus is right in the operating window. No level shifter needed for the Quad I/O lines. The 108 MHz clock is the maximum rated speed; at lower frequencies (25 MHz, 50 MHz) the part runs with zero wait states, which simplifies timing closure on legacy MCU designs.