64 Mbit NOR Flash in a 24-ball BGA — what this part is
Typical applications include code shadowing in embedded systems, firmware storage for networking equipment, and data logging in industrial controllers where the Quad I/O bus gives a decent read throughput without the pin count of a parallel NOR.
Infineon has stopped production, so new-issue material is no longer available through the factory channel. Any stock on hand is surplus or last-time-buy inventory held by independent distributors. If you have an active BOM line using this exact code, you are looking at either sourcing from the spot market or qualifying a replacement. The 108 MHz Quad I/O and 64 Mbit density are common enough that several current-production NOR Flash parts from Infineon, Macronix, Winbond, and ISSI can cover the same function, but the 24-ball BGA (8x6 mm) footprint is specific — a pin-compatible drop-in is not guaranteed without checking the ball map against the datasheet.
108 MHz Quad I/O — read performance and bus margin
For a 64 Mbit part, that means the entire array can be read in under 150 ms, which is fine for code shadowing or fast boot loads. The 3 ms page write cycle is typical for NOR — not a bottleneck for firmware updates, but not a candidate for high-frequency data logging. The 2.7 V minimum supply means the part stays operational through a 3.3 V rail with typical tolerance, though you lose headroom if the rail dips below 2.7 V during brownout.