• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 19 subscribers
  • Views 308 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

SN74LV1T34: 5v5 tolerant input on this part?

Björn Hellerstedt
Prodigy 180 points
Part Number: SN74LV1T34
Other Parts Discussed in Thread: SN74LVC1G34, SN74AHC1G125

Hello

Short question. I just want to confirm.

In the first page of DS "5v tolerant inputs"

at page 6/24 "Recommended operating Conditions"

max 5.5v input and Vcc.

I would like to use this device to translate 5.5v logic signal to 3.3v. From my understanding it is ok, in my design the device will have VCC=3.3v and the input at pin2 will be up to 5.5v.

Any drawbacks when input signal is 5.5v ?

Will rise/fall time be affected? If still in nS range it is not any problem in this design,

Thank you for your help!

  • 0
    Guru 258480 points

    This will work. The electrical characteristics are guaranteed as long as you stay inside the recommended operating conditions.

    For downtranslation, you can also use any buffer with overvoltage-tolerant input, i.e., SN74AHC1G125/126, SN74LVC1G34/17/125/126.