what should be the connection of unused supply monitoring pin of STM6905(Quintuple, ultralow voltage supervisor) Monitoring IC, It is mentioned that the pin is having high impedance.

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Peter BENSCHBest answer

ST Technical Moderator

Any of the unused supply monitoring pins (V2IN/V3IN/V4IN/V5IN) of the STM6905 can be connected to VCC, either directly or via a pull-up.

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/Peter

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Peter BENSCH

ST Technical Moderator

Welcome, @AMart.24, to the community!

Please connect unused supply monitoring pins (V2IN/V3IN/V4IN/V5IN) of the STM6905 to VCC, otherwise they may pick up noise from the environment and generate a reset at the /RST output.

Does it answer your question?

Regards

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

AMart.24Author

Associate II

Many thanks Peter for your reply,

Should we use a pull up, or connect it directly to supply, for unused pins?

Peter BENSCHBest answer

ST Technical Moderator

Any of the unused supply monitoring pins (V2IN/V3IN/V4IN/V5IN) of the STM6905 can be connected to VCC, either directly or via a pull-up.

If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

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