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SN74LVC1T45: Same specification part with Inverter

deepak naiknavare
Prodigy 150 points
Part Number: SN74LVC1T45
Other Parts Discussed in Thread: SN74LV1T04, SN74LV1T34, SN74LVC1G17, SN74LVC1G14

I need a similar specifications part but with an inverter function. Can you support in this requirement?

(I could find SN74LV1T04, but its not with dual supply)

Regards,

Deepak

  • 0
    Guru 295240 points

    No; all level shifters with two supplies are non-inverting.

  • 0 in reply to Clemens Ladisch
    Prodigy 150 points

    Thanks for information.

    I am using SN74LVC1T45DCKR as a level translator (5V to 3.3V) in existing design, i needed an inverter logic part  as replacement incase changing to invert logic.

    Since there is no invert function with dual supply, I am thinking to change the design with SN74LV1T04 (invert) and SN74LV1T34 (buffer) in same package.

    Do you see any issues, challanges to go ahead with this change? The signal is fed to controller with a maximum speed of 20MHz.

  • 0 in reply to deepak naiknavare
    Guru 295240 points

    For unidirectional downconverting, you can use any buffer or inverter with overvoltage-tolerant input. The SN74LV1T04/34 will work, but you can also use the cheaper SN74LVC1G14/SN74LVC1G17.