TXB0104: Micro SDHC SPI Mode Communication

Jonathan Navor

Part Number: TXB0104
Other Parts Discussed in Thread: TWL1200, TXS0206, TXU0304

Hi Team,

Good day!

I would like to know whether the TXB0104 is suitable for a communication from a microcontroller to a microSDHC card in "SPI mode". The microcontroller core voltage would be 5V and the micro SD voltage 3V3.

If it does not, could you advise me for another component? Preferrably with VSSOP package.

Thank you in advance.

Best regards,

Jonathan

over 2 years ago

+1 Clemens Ladisch over 2 years ago

Guru 276620 points

TXB translators do not work with pull-up/-down resistors.

There are specialized translators like the TXS0206 or TWL1200.

+1 Dylan Hubbard over 2 years ago in reply to Clemens Ladisch

TI__Mastermind 44630 points

Hi Jonathan,

If SPI Mode is equivalent to normal SPI, then I recommend a device like TXU0304.

+1 Clemens Ladisch over 2 years ago in reply to Dylan Hubbard

Guru 276620 points

SPI mode must be enabled with native-mode commands, so you need a bidirectional translator like the TXS.

Logic

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TXB0104: Micro SDHC SPI Mode Communication