This part is a kind of semiconductor called ADuM7642.

Function of this product has (ADuM7640 - ADuM7643) 1 kV RMS Six-Channel Digital Isolators.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

Data Sheet FEATURES 1 kV RMS Six-Channel Digital Isolators ADuM7640/ADuM7641/ADuM7642/ADuM7643 FUNCTIONAL BLOCK DIAGRAMS VDD1A 1 GND1 2 VIA 3 VIB 4 VIC 5 VID 6 VDD1B 7 VIE 8 VIF 9 GND1 10 ENCODE ENCODE DECODE DECODE ENCODE ENCODE ENCODE ENCODE DECODE DECODE DECODE DECODE Small 20-lead QSOP 1000 V rms isolation rating Safety and regulatory approvals (pending): UL recognition (pending) 1000 V rms for 1 minute per UL 1577 Low power operation 3.3 V operation 1.6 mA per channel maximum at 0 Mbps to 1 Mbps 7.8 mA per channel maximum at 25 Mbps 5 V operation 2.2 mA per channel maximum at 0 Mbps to 1 Mbps 11.2 mA per channel maximum at 25 Mbps Bidirectional communication Up to 25 Mbps data rate (NRZ) 3 V/5 V level translation High temperature operation: 105°C High common-mode transient immunity [ ... ]

ADuM7642 PDF Datasheet Download