TXS0102-Q1: schematic review and question

Jimmy Gong

Expert 3600 points

Part Number: TXS0102-Q1

Hi team.

Good news that we design in the TXS0102QDCURQ1 and need your help to review schematic.

VCCA 1.8VèModule other device I2C level
VCCB 3.6Vè MCU I2C level
should we control OE PIN by serdes GPIO?

BR,

Jimmy

over 2 years ago

0 Michael Ikwuyum over 2 years ago

TI__Guru 50146 points

Hi Jimmy,

Yes, OE may be controlled externally.

Are both A1 and A2 being pulled up to VCCA with a pull-up resistor.

Note that the device has internal 10K resistors and external pull-ups are not be necessary, if any concerns for VOL. If no concerns for VOL, this should be fine.

Please also see Effects of pullup and pulldown resistors on TXS, thanks.

Best Regards,

Michael.

0 Jimmy Gong over 2 years ago in reply to Michael Ikwuyum

TI__Expert 3600 points

Hi Michael,

thanks for your quickly reply.

I'm not pretty sure that do you mean we don't need external pull-ups? so we can remove R200 and R208 in the schematic?

BR,

Jimmy

0 Michael Ikwuyum over 2 years ago in reply to Jimmy Gong

TI__Guru 50146 points

Hi Jimmy,

Yes, with the internal 10K, you may remove R200 and R208, thanks.

Best Regards,

Michael.

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TXS0102-Q1: schematic review and question