This part is a kind of semiconductor called MT6620.
Function of this product has Wi-Fi NVRAM on MTK SP Platform Configuration.
Manufacturers : MediaTek
Image and pinout :

Some of the text within the PDF file :
Version 1.2 Specifications are subject to change without notice MT6620 Wi-Fi NVRAM Configuration 删除的内容: 1 Mediatek Confidential MT6620 Wi-Fi NVRAM on MTK SP Platform Configuration Version 1.2 删除的内容: 1 删除的内容: 1 Page 1 of 13 MEDIATEK CONFIDENTIAL, NO DISCLOSUR Version 1.2 Specifications are subject to change without notice MT6620 Wi-Fi NVRAM Configuration Revision History Revision Date Author 0.1 2011/05/30 CP Wu 0.11 2011/05/31 CP Wu 1.0 2011/6/3 CM Chang 1.1 2011/09/8 CM Chang 1.2 2011/09/29 CM Chang Description Initial version from spreadsheet version 1.04 Remove unused country codes Modify description of 40MHz bandwidth (only for AP mode) 1. Add aucRegSubbandInfo field 2. Modify regulation domain description 1. Fix offset of ucEnable5GBand i [ ... ]
MT6620 PDF Datasheet Download
