This part is a kind of semiconductor called N25Q128A.

Function of this product has NOR Flash Memory.

Manufacturers : Micron

Image and pinout :

Some of the text within the PDF file :

128Mb, Multiple I/O Serial Flash Memory Features Micron Serial NOR Flash Memory 1.8V, Multiple I/O, 4KB Sector Erase N25Q128A Features • • • • • • SPI-compatible serial bus interface 108 MHz (MAX) clock frequency 1.7–2.0V single supply voltage Dual/quad I/O instruction provides increased throughput up to 432 MHz Supported protocols – Extended SPI, dual I/O, and quad I/O Execute-in-place (XIP) mode for all three protocols – Configurable via volatile or nonvolatile registers – Enables memory to work in XIP mode directly after power-on PROGRAM/ERASE SUSPEND operations Continuous read of entire memory via a single command – Fast read – Quad or dual output fast read – Quad or dual I/O fast read Flexible to fit application – Configurable number of dummy cycles – Ou [ ... ]

N25Q128A PDF Datasheet Download