TXB0304: support Quad-SPI application

Chi Zhang2

Part Number: TXB0304
Other Parts Discussed in Thread: TXB0106

Hi, Expert

my customer want to choose a level shifter, supporting quad-SPI function.

in the application note, which is named "how to choose level shifter", it recommend TXB0106, but my customer want to use 2 TXB0304 as quad-SPI, any risk?

also, we find that, the BOM working in the SPI, couldn't support Quad-SPI, we need to change resistor and cap setting, do you see the same issue?

Chi

over 3 years ago

0 Clemens Ladisch over 3 years ago

Guru 320650 points

The TXB0304 has stronger output drivers, so it is preferred.

What do you mean with "resistor and cap setting"?

0 Chi Zhang2 over 3 years ago in reply to Clemens Ladisch

TI__Intellectual 2860 points

Hi, Clemens

I will provide the schematic after checking with customer, to make my description more clear.

Chi

0 Michael Ikwuyum over 3 years ago in reply to Chi Zhang2

TI__Guru 62817 points

Hi Chi,

Please note that you could also use 1 TXB0304 for the SPI signals, and 1 TXB0202 for the remainder of the signals in the 6signal QSPI application.

In addition to the schematics, could you please help confirm the data rate / frequency for the application? Thanks.

Best Regards,

Michael.

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TXB0304: support Quad-SPI application