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LSF0108-Q1: TXS0108E

user6015525
Prodigy 160 points
Part Number: LSF0108-Q1
Other Parts Discussed in Thread: TXS0108E

 hello team

I have a problem with LSF0108-Q1

can you give me some advice

1.IS It ok to use LSF0108-Q1  as a voltage level translators to deal with SDIO(data+clk+cmd) singal when SD_CLK≦100MHZ

2.Are pull-up resistors needed on both side of master and slave?

3.if LSF0108-Q1 is NG ,Can you give me other component  part recommendation for this application

4.TXS0108E can be used in this application?if not why

application as below

best regards

juan

  • 0
    TI__Guru 56010 points

    Hi Juan,

    The pullup resistors must be very strong and the capacitive loading must be limited by having short traces bw driver/receivers.

    the CLK line being push pull need not have external pullup at the input, but the IO lines which are bidirectional in nature must have pullup on either sides.