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Topic: W5500 when used with the DUE should I power the W5500 using 3.3.v or 5v? (Read 13 times) previous topic - next topic

xekon

W5500 when used with the DUE should I power the W5500 using 3.3.v or 5v?

The W5500 supports either 3.3v or 5V, The due also has pins for both 3.3v and 5v.

I have read however that because the DUE operates at 3.3v you have to be careful not to apply more than 3.3v to I/O pins and I am not sure if the W5500 is powered using 5V if it would apply 5v to any I/O pins or not.

This leads me to believe I am better off using the W5500 at 3.3v

I was just hoping to get confirmation either way.

Juraj

W5500 is a 3.3 V device with 5 V tolerance on SPI pins. ATmega reads 3.3 V as HIGH.
the breakout board you use must convert 5 V Vcc to 3.3 V to power the W5500

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