Tool/software:
I want to know what is the recommended TVS/ESD protection for the programming pins SWDIO, SWDCK pins of the MCU? The GPIO has 4.1 absolute maximum, so ideally clamping voltage to be lesser than this?
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Tool/software:
I want to know what is the recommended TVS/ESD protection for the programming pins SWDIO, SWDCK pins of the MCU? The GPIO has 4.1 absolute maximum, so ideally clamping voltage to be lesser than this?
Shashank,
The CC2745R10-Q1 programming pins have an HBM (human body model) ESD Classification Level of 2 which means the device pins can handle an HBM ESD event up to 3,999V. Additionally the devices CDM (Charged Device Model) ESD Classification level is C2A which is capable of withstanding a CDM ESD event of up to 750V. If your application will potentially exceed these levels of ESD events, then you can add TVS/ESD protection that meets or exceeds your expected level of ESD. A device we offer that may meet your requirements is linked below.
https://www.ti.com/product/TPD4E02B04-Q1
Regards,
Andrew
The device you have suggested has a clamping voltage of 6.6V. Shouldn't it be less than 4.1V which is the max. GPIO voltage of the MCU?
Shashank,
I'm sorry, I should have asked this initially, but what is your intended application for this device?
Andrew