TXB0104: P2P TXB0104RUTR and Stronger Driving current

Kuan Wei Chen (Kevin Chen)

Genius 9710 points

Part Number: TXB0104
Other Parts Discussed in Thread: SN74AXC4T245

Dear Team,

Do we have P2P TXB0104RUTR device and have a higher driving current?

If no P2P, please also suggest a higher driving current devices.

Kevin

over 5 years ago

0 Clemens Ladisch over 5 years ago

Guru 316690 points

To make automatic direction sensing possible, the TXB necessarily has weak output drivers in order to allow other devices to override the voltage level.

What is the actual problem you're trying to solve? Do you actually need automatic direction sensing?

0 Kuan Wei Chen (Kevin Chen) over 5 years ago in reply to Clemens Ladisch

TI__Genius 9710 points

Dear Ladisch,

Thanks for the input.

They use it for level shift for MAC, let me check with them if the automatic direction is necessary or not tomorrow.

In the meantime, do we have non-automatic P2P and stronger driving device?

Kevin

0 Chad Crosby over 5 years ago in reply to Kuan Wei Chen (Kevin Chen)

TI__Expert 6680 points

Hi Kevin,

Unfortunately nothing that we offer that's direction controlled will be P2P; however, I have some part recommendations:

The SN74AXC4T245 is our new line of bus transceivers (level shifters) and has a much higher drive strength at the output.

If you're looking for something that has a higher supply voltage rating (and a little higher drive strength), then the LVC family will be better, but we don't offer any 4-bit devices from that family.

Thanks!

Chad Crosby

0 Clemens Ladisch over 5 years ago in reply to Kuan Wei Chen (Kevin Chen)

Guru 316690 points

I guess you are using (R)(G)MII? Which one?

(As far as I can see, all lines except MDIO are unidirectional.)

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TXB0104: P2P TXB0104RUTR and Stronger Driving current