TUSB8020B: Reference design for 10 port USB hub

Waleed

Part Number: TUSB8020B

Hello,

I am integrating 10 port USB hub into a design. I came by TIDA-00287 reference design, however, I was wondering if there is any chip to provide 10 port USB hub. I need to connect 10 USB storage devices (around 32 GB) for data transfer in sequence. Therefore, I wish help could be provided. I don't want any manual switching as all USB devices must be recognized at the same time on the PC.

All help is appreciated.

over 2 years ago

0 Clemens Ladisch over 2 years ago

Guru 295500 points

A hub with that many ports must be created by combining multiple smaller hubs.

The largest hubs made by TI are the TUSB804x with four ports.

0 Waleed over 2 years ago in reply to Clemens Ladisch

Prodigy 90 points

Thanks Clemens for your response. This came by my.mind. I just couldn't find a reference showing how to scale it up using 2 ports or 4 ports into more ports as you suggested.

0 Clemens Ladisch over 2 years ago in reply to Waleed

Guru 295500 points

Just combine multiple hubs, but omit the actual cables between them.

0 Waleed over 2 years ago in reply to Clemens Ladisch

Prodigy 90 points

Thanks again for your response. Is it going to be in parallel or chained ?

0 Clemens Ladisch over 2 years ago in reply to Waleed

Guru 295500 points

The USB specification limits the total chain length to 7, i.e., to at most 5 hubs in series. So connecting them in parallel might be the better option.

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TUSB8020B: Reference design for 10 port USB hub