Isolation Circuit IC for Serial Communication

sabu31

Advanced Member level 1
Joined
Jan 28, 2011
Messages
467
Helped
12
Reputation
24
Reaction score
13
Trophy points
1,298
Activity points
5,358
Hi All,

I am trying to send data from TI microcontroller TMS320F28027 to ESP32 using serial communication. I need ESP32 GND to be Isolated from TMS320F28027. For this I am using digital isolator
SI8640BD-B-IS. The connection is shown in the attached. I am currently using it to transmit data from TI to ESP. No data is transmitted back from ESP32 to TI microcontroller. Is this isolator suitable ( as it's unidirectional)? I am attaching the pin configuration of the isolator. What other isolator is suitable if not this one?




 

Hi FvM,

Thanks for the reply. At present I have si8640. As I need only to transmit data, is it possible to do so using si8640 (unidirectional). the other ones are not in stock.
 

Similar threads

Cookies are required to use this site. You must accept them to continue using the site. Learn more…