AFE4405 PDF datasheet can download.
This product has AFE4405 Ultra-Small Integrated AFE with FIFO for Wearable Optical Heart-Rate Monitoring and Bio-Sensing functions.
This is one of the semiconductor types. This part name is AFE4405.
Manufacturers of the product is Texas Instruments.
Image and pinout :
Some of the text files within the PDF file
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Please refer to the file for details.