WIZnet Developer Forum

W5500 Crystal Frequency Question

Hi, we have a product which uses W5500 as the Ethernet controller. But we are running out of stock of the crystal that connects to pin 30 and 31. We see from the datasheet that the requirement for the crystal is 25MHz. Can we use some other frequency like 24MHz (lower) or 30MHz (higher)?

The minimum guaranteed speed of the SCLK is 33.3 MHz which was tested and measured with the stable waveform. But if it’s set to 25M, it’s stable

Thank you.

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