Description
   The N25Q128 is a 128 Mbit (16Mb x 8) serial Flash memory, with advanced write protection mechanisms. It is accessed by a high speed SPI-compatible bus and features the possibility to work in XIP (“eXecute in Place”) mode.

   The N25Q128 supports innovative, high-performance quad/dual I/O instructions, these new instructions allow to double or quadruple the transfer bandwidth for read and program operations.

   Furthermore the memory can be operated with 3 different protocols:
   ◾ Standard SPI (Extended SPI protocol)
   ◾ Dual I/O SPI
   ◾ Quad I/O SPI

   The Standard SPI protocol is enriched by the new quad and dual instructions (Extended SPI protocol). For Dual I/O SPI (DIO-SPI) all the instructions codes, the addresses and the data are always transmitted across two data lines. For Quad I/O SPI (QIO-SPI) the instructions codes, the addresses and the data are always transmitted across four data lines thus enabling a tremendous improvement in both random access time and data throughput.