This part is a kind of semiconductor called N25Q128.

Function of this product has serial flash memory.

Manufacturers : Numonyx B.V

Image and pinout :

Some of the text within the PDF file :

N25Q128 128-Mbit, 1.8 V, multiple I/O, 4-Kbyte subsector erase on boot sectors, XiP enabled, serial flash memory with 108 MHz SPI bus interface Features „ SPI-compatible serial bus interface „ 108 MHz (maximum) clock frequency „ 1.7 V to 2 V single supply voltage „ Supports legacy SPI protocol and new Quad I/O or Dual I/O SPI protocol „ Quad/Dual I/O instructions resulting in an equivalent clock frequency up to 432 MHz: „ XIP mode for all three protocols – Configurable via volatile or non-volatile registers (enabling the memory to work in XiP mode directly after power on) „ Program/Erase suspend instructions „ Continuous read of entire memory via single instruction: – Fast Read – Quad or Dual Output Fast Read – Quad or Dual I/O Fast Read „ Flexible to [ ... ]

N25Q128 PDF Datasheet Download