TXB0304: Recommended SPI buffer

Gary Chang

Intellectual 340 points

Part Number: TXB0304
Other Parts Discussed in Thread: TXU0304, TXB0104

Hello Team,

We use the SPI trace length is about 20" on MB, we plan to add a SPI buffer on MB

Can the TXB0304 be used as a buffer for SPI? or do you have any better suggestions?

Thanks

9 months ago

0 Clemens Ladisch 9 months ago

Guru 271360 points

The TXB is not a buffer.

Are you using SPI or QSPI?

0 Michael Ikwuyum 9 months ago in reply to Clemens Ladisch

TI__Mastermind 29400 points

Hi Gary,

You may also see TXU0304 as a more suitable recommendation for SPI, thanks.

Best Regards,

Michael.

0 Gary Chang 8 months ago in reply to Clemens Ladisch

Intellectual 340 points

Hello Clemens,

We need to use it for QSPI (auto direction) , the traces length is as follows. We will use TXB0304 to replace NTB0104GU12

Do you have any better suggestions?

Thanks

0 Clemens Ladisch 8 months ago in reply to Gary Chang

Guru 271360 points

The NTB0104 is a clone of the TXB0104. The TXB0304 has stronger outputs, but requires that the other devices also have more drive strength (3 mA instead of 2 mA). If possible, you should use the TXB0304.

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TXB0304: Recommended SPI buffer