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TXB0108: Best fit device suggestion for I2C, SPI, 100MHz CLK

Ella KIM
Expert 4092 points
Part Number: TXB0108
Other Parts Discussed in Thread: TXU0304, SN74LXC8T245, TXV0106

Tool/software:

Hello Team,

My customer has been using two devices below and currently requires more channels.

 - LSF0102DQER (I2C Only)

 - TXB0108YZPR

Requirement is as below. Can you please advise the best device selection?

 - I2C : 14ch (Total pin : 14 x2 = 28)

 - SPI : 6ch (Total pin : 6 x4 = 24)

 - Clock(Max 100MHz under) : 5ch (Total pin : 5 x1 = 5)

It looks the maximum channel number is 8 among the auto directional level shifter. Would you recommend 8 pcs of TXB0108YZPR for this requirement?

Thank you. 

Ella

  • +1
    Guru 295220 points

    For I²C, use LSF devices. For SPI, use 6× TXU0304. For the clocks, use any unidirectional or direction-controlled translator like the TXV0106 or SN74LXC8T245.