How to set the VDD(PAD) range with the PN7150?

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How to set the VDD(PAD) range with the PN7150?

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dominusdrr
Contributor IV

Hi.

I'm designing a PCB with the PN7150 and a microcontroller.

I have read in the data sheet that the device's I2C interface can work at two logic voltage levels, 1.8V or 3V as logic 1.


If my microcontroller works with 3.3V. My question is:


How do I configure the PN7150 so that the I2C interface works at 3V?


Any comment or suggestion is welcome.

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1 Solution
1,167 Views
Kan_Li
NXP TechSupport
NXP TechSupport

Hi @dominusdrr ,

 

Maybe there is any misunderstanding? PN7150's VDD(PAD) can be 3.6V at max in case of 3V host supply, and I2C pins 's max input always follows the level on VDD(PAD) without any configuration else. Please kindly refer to the following for details.

Kan_Li_1-1647567923049.png

Kan_Li_2-1647567997838.png

 

Hope that makes sense,

 

Have a great day,
Kan


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1,168 Views
Kan_Li
NXP TechSupport
NXP TechSupport

Hi @dominusdrr ,

 

Maybe there is any misunderstanding? PN7150's VDD(PAD) can be 3.6V at max in case of 3V host supply, and I2C pins 's max input always follows the level on VDD(PAD) without any configuration else. Please kindly refer to the following for details.

Kan_Li_1-1647567923049.png

Kan_Li_2-1647567997838.png

 

Hope that makes sense,

 

Have a great day,
Kan


-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
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1,098 Views
dominusdrr
Contributor IV

Thank you very much for the clarification. Sorry for the delay in responding.

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