This part is a kind of semiconductor called 25X16.
Function of this product has (25X16 - 25X64) Serial Flash Memory.
Manufacturers : Winbond
Image and pinout :

Some of the text within the PDF file :
W25X16, W25X16A, W25X32, W25X64 16M-BIT, 32M-BIT, AND 64M-BIT SERIAL FLASH MEMORY WITH 4KB SECTORS AND DUAL OUTPUT SPI -1- Publication Release Date: October 11, 2007 Revision G W25X16, W25X16A, W25X32, W25X64 Table of Contents 1. 2. 3. 4. 5. 6. 7. 8. GENERAL DESCRIPTION . 4 FEATURES . 4 PIN CONFIGURATION SOIC 208-MIL... 5 PAD CONFIGURATION WSON 6X5-MM & 8X6-MM 5 PIN CON [ ... ]
25X16 PDF Datasheet Download
