Teensy 4.1 5V instead of 3.3V

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Pazuzo

New member
Hello,
I apologize in advance for the stupid question., but I mistakenly applied 5 volts instead of 3.3V to pin 14 on a teensy 4.1. Can you point me to a possible resurrection of the board or should I go for the option of ordering a new one?
 
If you are lucky only pin 14 is fried... If the board isn't responsive to the factory reset procedure then its toast.
 
Definitely dead. That chip really is definitely not 5V tolerant... Internally its 1.8V, the I/O layer is the only part that is even 3.3V tolerant...
 
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