Please tell me which's chip used ?

Hi all !
Can you tell me which's the chip used on this module ?
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Thank you !
 

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From the DS its saying that the chip can work without an MCU. The relevant webpage says it can be used to build a stand-alone mp3 player. If there is an SPI EEPROM that is, which I can't see on your picture although there is a site for it on the PCB.

So perhaps the chip is a Chinese copy of the VLSI part. My eyesight isn't good enough but it may be the same part as used in this Chinese player which is also functioning without any external memory.

https://item.taobao.com/item.htm?spm=a230r.1.14.150.eAYqOw&id=525548563132&ns=1&abbucket=13#detail