128 Mbit NOR flash — what it brings to the board
It talks over an SPI bus with Quad I/O and QPI support, clocking up to 133 MHz. That interface speed matters when you are feeding a cached MCU or FPGA configuration store — the Quad I/O mode gives four data lines, so the effective throughput is higher than a plain SPI part at the same clock.
24-ball BGA — rework and field reality
The package is a 24-ball TBGA, 6x8 mm body. That is a fine-pitch BGA — not something you swap with a soldering iron in a parking lot. If this part is on a board that might need field repair, plan for hot-air rework or a pre-programmed spare board.
This part is officially marked Obsolete. No new production runs. The only channel is surplus or broker stock. If you have an active design using this exact code, you need to qualify a replacement or secure your remaining lifetime buy through independent distribution.