Electronics > Beginners

USB C to USB C connector?


Hi everyone

I just want to confirm something
So a USB C to USB C cable is not just two plugs and a couple of wires wired 1 to 1? Is there really a IC inside the connector? Does that mean if you put a signal on the one side it will in all likely hood not reflect on the other side?

Lets say I build a little system that uses Female USB C breakout boards. I just want a simple HIGH on the one end to reflect on the other end so I can run it into an MCU. However if there is an IC inside the USB C Plug then
 my simple signal has a high chance on never reaching the other side right?


Mostly it is just a wire,  E-marked cables include a chip which will communicate on the cc pins (and draw power from vconn - gnd).

Terry Bites:
see https://en.wikipedia.org/wiki/USB-C

Also keep in mind only some of the wires are there.

A standard USB type C socket has two sets of USB 2.0 data pins but only one pair is actually present. You are meant to connect them in parallel to support reversible cables.

The superspeed pairs are optional and any given cable might have 0, 2, or 4 pairs present.  You don't connect them in parallel, if you only want to use 2 you need a switch that selects the right pairs based on cable orientation.

CC pins are used for detection and can have an etag chip connected.


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