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Regarding I2C interface

Added by Raja Vankam almost 10 years ago

We need to interface Power line Communication through I2C to AM3359.

Device communication output voltage specifications are as follows:

VOH = 4V (min)
VOL = 0.75 (max)
VIL = 0.8 (max)
VIH = 2.1 (min)

please let us know the AM3359 is 5V inherent?

whether need to provide any protection to the I2C line.

Regards,
Raja.


Replies (3)

RE: Regarding I2C interface - Added by Alexei Shkurko almost 10 years ago

Hi Raja,

you have to use 5V to 3.3V I2C level shifter to interface with AM3359, it is not 5V tolerant part

this article may be helpful http://ics.nxp.com/support/documents/interface/pdf/an97055.pdf

Regards,
Alexei

RE: Regarding I2C interface - Added by Raja Vankam almost 10 years ago

Hi Alexei,

Could you please suggest an IC for this application.

Regards,
Raja.

RE: Regarding I2C interface - Added by Alexei Shkurko almost 10 years ago

Hi Raja,

I've used 2 Mosfet's for level translation in the past. cheaper and works well, plus no obsolescence issues.

Regards,
Alexei

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