ST2378E is not working properly. TT

[Sellyette]

Hi.

 

I have two level shifters, ST2378e and ADG3308.

But, all of them are not working propoerly.

 

Oscilloscope displayed following video.

https://youtu.be/JwTMTi1wS8w

 

I had connected pins properly and checked many times.

VL(3.3v), VCC(5.0v) and GND OE pins are right.

and 0.1uF cap too.

 

I assumed problem is cross talk ioVL1 with ioVCC1.

anybody help me please. I have spend two weeks for this.

 

[Sellyette]

ioVL1 is connect with pin of STM32F303 (1uS TogglePin) and probe of ocilloscope (GREEN)

uiVCC1 is not connected. (just probe of ocilloscope.) (YELLOW)