Request for Feedback on Schematic and Queries - ST33TPHF2XI2C

sonaliz · ‎2025-01-22

Hello,

We are considering using the ST33HTPH2X32AHD5 for our application. This IC has four GPIOs (GPIO_PP, GPIO_LP, GPIO_D, GPIO_C), along with RESET and IRQ pins. We have the following questions regarding these pins:

1) Can you recommend which GPIO pins should be used/connected to the controller?

2) Can the GPIO pins be left open if not in use?

3) Is a 10k pull-up resistor required on the RESET pin?

4) Is a 10k pull-up resistor required on the IRQ pin?

5) We have added a 2k pull-up on the I2C lines. Is a 2k pull-up acceptable for this application?

6) We have also attached the schematic for your review.

Please review and provide you feedback and suggestion.

Thanks,

Sonali

Peter BENSCH · ‎2025-01-22

The data of all ST33 devices is strictly confidential and will only be handed over if an NDA is signed. For this reason, nobody in the public community will be able to help you, so you should contact your local ST contact.

Hope that helps?

Regards
/Peter

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