TXS0102: Pull-up Resister

Shuji Ishiwata

Part Number: TXS0102

Hi Team,

I have a question on TXS0102.
Are unused pins connected to GND? Is it VCC connection?

Also, although internal pull-ups are made on the A side and B side, is it OK to pull up externally?
The customer's board already has a pull-up resistor mounted and can not be removed.
Therefore, I want to check if there is a problem with the operation even if the pull-up resistor is attached.
Customers want to pull up with 1.2kΩ.

Best Regards,
Ishiwata

over 7 years ago

0 Dylan Hubbard over 7 years ago

TI__Mastermind 47735 points

Hi,

Unused data pins can be left floating as they will be pulled up to VCC due to the internal pull-ups. The OE pin can not be left floating it must maintain a valid logic level.

As for the external pull-ups, please refer to the application report below:

http://www.ti.com/lit/an/scea054a/scea054a.pdf

0 Shuji Ishiwata over 7 years ago in reply to Dylan Hubbard

Mastermind 8800 points

Thank you for your response.

Best Regards,
Ishiwata

0 Dylan Hubbard over 7 years ago in reply to Shuji Ishiwata

TI__Mastermind 47735 points

Hi Ishiwata,

I'm glad I could help! If you could do me a favor and click the green verify button that way if others have the same question they will see a verified answer to it. Thanks!

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TXS0102: Pull-up Resister