STM32G030F6P6 GPIO PROTECTION

[GErma.1]

Hi

I would like to use some GPIO to read pulses from a gas meter. The will be exposed outside the product. So, I was planning to use a TVS plus resistor to protect tge device.

Can someone give any info on this? I believe that it is recomended, but the MCU has some level of ESD protection.

[S.Ma]

That depends on the final product spec.

If digital input, old TV used 1kohn serial resistors to reduce esd gun zap on connectors....