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Blog USB Type-C®︎ Cable and Connector Specification Revision 2.1 has been released
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EMI-Reduction-Techniques
Engagement
  • Author Author: cstanton
  • Date Created: 26 May 2021 3:48 PM Date Created
  • Views 2009 views
  • Likes 6 likes
  • Comments 1 comment
  • power delivery
  • connector
  • usb-c
  • usb-c connector
  • usbc
Related
Recommended

USB Type-C®︎ Cable and Connector Specification Revision 2.1 has been released

cstanton
cstanton
26 May 2021

You never notice when something is implemented correctly because it 'just works' , but when it's done wrong, wow you really do notice.

 

USB is one of those technologies that hardware designers manage to repeatedly get wrong, even the Raspberry Pi Trading has managed to leave out a resistor or capacitor for the USB-C standard power on the latest Raspberry Pi, which I believe has now been fixed, but it's typical as well to not know what kind of USB-C cable you're getting.

 

Benson Leung, an employee of Google, went out of his way to go through Amazon and other websites, reviewing USB-C cables when the standard first appeared because he wanted customers to be able to get the most out of the Google phones that used USB-C and do so reliably, it also held them accountable to uphold the standard.

 

If you don't already, it's worth following him on Twitter.

 

And recently he's tweeted about the new connector specification revision 2.1 for USB Type-C.

 

image

 

While he's also posted about it on Reddit, usb.org has the official specification documents.

 

image

With the specifications you can clearly see how to integrate this hardware into your designs, but also judge with a critical eye whether the hardware you're buying is actually following the specifications correctly.

 

Usb.org also has the updated power supply specification for USB.

 

image

 

The power documentation is worth a read, and even has mention of USB4, a standard which I'm not aware has been implemented just yet in any practical hardware, but obviously inevitable.

 

image

 

USB and its connectors are certainly becoming quite powerful.

Attachments:
1541.USB Type-C 2.1 Release - May 2021.zip
USB Power Delivery 20210525.zip
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  • cstanton
    cstanton over 4 years ago

    I think what impresses me the most is the up to 240w power delivery.

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