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Can I swap D+/- pins on the ECMF4-20A42N10?

PBain
Associate

The pinout of the connector and USB controller I am using means that I need to flip the differential signals either side of the ECMF4-20A42N10.

The layout would be a lot cleaner if I could swap D+/- signals on this device. For example:

Swap Pins 9/10 and 1/2. So the flow through direction is still the same, but D+/- signals are swapped.

From the representation diagram in the datasheet it appears I can, but I would like to confirm please.

Thanks,

Peter

1 ACCEPTED SOLUTION

Accepted Solutions
FGUIT
ST Employee

Dear Peter,

You can swap D+/- on ECMF4-20A42N10 without any issue, as lines D+ and D- are identical.

So swapping pins 9/10 and 1/2 is OK.

An important point is to let pins 1,2,4, 5 on connector side, as there is ESD protection against IEC 61000-4-2 ESD.

Best regards.

Fabrice.

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2 REPLIES 2
FGUIT
ST Employee

Dear Peter,

You can swap D+/- on ECMF4-20A42N10 without any issue, as lines D+ and D- are identical.

So swapping pins 9/10 and 1/2 is OK.

An important point is to let pins 1,2,4, 5 on connector side, as there is ESD protection against IEC 61000-4-2 ESD.

Best regards.

Fabrice.

PBain
Associate

Thanks! I thought as much, just wanted to confirm.