AM62P: unused pin connection

Michael Frey

Part Number: AM62P

Tool/software:

We don't want to connect a RTC crystal (WKUP Clock Signal) to our processor.

What shall we do with WKUP_LFOSC0_XI WKUP_LFOSC0_XO (Ball A7 and A8)?

What are the limitations when we operate an AM62P without a WKUP Clock Signal?

The main reason why don't want to use a slow clock crystal is, that we have a dedicated Real time Clock IC.

0 Kallikuppa Sreenivasa 1 month ago

Hello Michael Frey,

Thank you for the query.

Please refer below section of the AM62P data sheet:

6.12.4.1.5 WKUP_LFOSC0 Not Used

Please refer below FAQ that includes link to common collaterals

Michael Frey said:
What are the limitations when we operate an AM62P without a WKUP Clock Signal?

An accurate 32.768K clock will not be available.

Since you have an external RTC IC, not using 32K should not be a concern.

Regards,

Sreenivasa

0 Michael Frey 1 month ago in reply to Kallikuppa Sreenivasa

I was using a Rev. A datasheet - thank you very much for pointing me to the newer revision of the datasheet.

0 Stanislav Stilyanov 1 month ago in reply to Michael Frey

Hi Michael,

Thanks for confirming you are using older datasheet version. Please let us know if you have further questions regarding unused pins.

Thanks,

Stan

0 Kallikuppa Sreenivasa 1 month ago in reply to Michael Frey

Hello Michael Frey,

Please note the latest revision was just released.

Please use the below revision.

SPRSP89B – DECEMBER 2023 – REVISED AUGUST 2025

Regards,

Sreenivasa