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AURIX™ Forum Discussions

Darkrai
Level 1
Level 1
5 questions asked 10 sign-ins 5 sign-ins

I am using Aurix TC397XX uC, I could not find accurate value of the internal Pull Up and Down used. Could you please let me know what the values are?

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dw
Moderator
Moderator
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1000 replies posted 250 solutions authored 100 likes received

In the datasheet of TC39x, you can find On-Resistance of pad output RDSON CC

Otherwise, Values for Pull-up resistor is defined via parameter RMDU in table VADC 5V. Values for Pull-down resistor is defined via parameter RMDD in table VADC 5V

 

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Darkrai
Level 1
Level 1
5 questions asked 10 sign-ins 5 sign-ins

Hello,

My question is regarding the pull up resistors used... In the parameter RDSON CC I could find different resistance values in terms of ohms, but there is weak pull ups and pull downs inside Aurix. I wanted the value of that.

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dw
Moderator
Moderator
Moderator
1000 replies posted 250 solutions authored 100 likes received

If you check the GPIO 3.3V/5V part from datasheet, you can see the pull-up and pull-down current with footnote 4) of resistors inside the chip.

dw_0-1675673751887.png

 

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