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August 3, 2025
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LIV4F reserved pin 7

  • August 3, 2025
  • 1 reply
  • 2906 views

Hello,

I have a design with same pinout and package (as LIV4F) that is working with 3.3V from other vendor.

Pin 7 is used as VCC_IO and it is connected to 3.3V.

The question is, can I replace and put the LIV4F instead?

What will happen if pin 7 will get 3.3V (instead of being not connected)?

Any chance of harm or malfunction?

I don't expect logic issue since I'm working with 3.3V anyway (and no conflict with past pin configuration that was VCC_IO)

Best answer by GalaxyQuest

Hi,

In LIV4F, pin 7 - reserved is not connected inside the module, therefore providing a voltage of 3.3V to this reserved pin will not cause any problems.

 

 

1 reply

GalaxyQuestBest answer
Technical Moderator
August 5, 2025

Hi,

In LIV4F, pin 7 - reserved is not connected inside the module, therefore providing a voltage of 3.3V to this reserved pin will not cause any problems.

 

 

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