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SN74AVC4T774: buffer capability

Mark Chen52
Expert 6725 points
Part Number: SN74AVC4T774
Other Parts Discussed in Thread: SN74AXC4T774, TXS0104E

Hi Expert,

I would like to confirm with you that customer used SN74AVC4T774RSVR and TXS0104EPWR for SPI/SMI level shift in the new design board.

And want to check if these parts also have buffer function. if yes, how to evaluate the driver capability?

Regards,

Mark

  • 0
    Guru 276980 points

    The SN74AXC4T774 has buffered I/Os. For the drive strength, see IOL/IOH in the recommended operating conditions.

    The TXS0104E is a passive switch, i.e., it is not buffered. For slow, open-drain protocols like I²C or MDIO, this is usually OK.