
MVP1000717-waterProofFanControl
allardMVP/MVP1000717-waterProofFanControl
If you see all this text this repo is not fully setup.....
Texas InstrumentsExtended
-40℃~+125℃ 1 1 1.71V~5.5V 1.71V~5.5V 11ns 150kV/us 50Mbps Fail-safe output High Level SOIC-8 Digital Isolators ROHS
The ISO6521D is a digital Isolator made by Texas Instruments in a SOIC-8 package with 8 pins. -40℃~+125℃ 1 1 1.71V~5.5V 1.71V~5.5V 11ns 150kV/us 50Mbps Fail-safe output High Level SOIC-8 Digital Isolators ROHS.
PCBKit's library has its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 21 are in stock at JLCPCB (part C33456139). 2 open-source boards in 2 repositories on GitHub use it.
The library has no symbol for this part yet.

allardMVP/MVP1000717-waterProofFanControl
If you see all this text this repo is not fully setup.....

Yes. the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOIC-8, with 8 pins. Its footprint is drawn on this page.
Texas Instruments publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C33456139, with 21 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the CA-IS3721CLS by Chipanalog, the ADUM1200ARZ-YC by YLPTEC, the ADUM1201ARZ-YC by YLPTEC and the ADUM1201ARZ-HX by ZHHXDZ. Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.