• State TI Thinks Resolved
  • +1 person also asked this people also asked this
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 33 subscribers
  • Views 269 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.

MAX232E: IBIS modelling

Antenna_Head
Genius 11815 points
Part Number: MAX232E
Other Parts Discussed in Thread: MAX3232E, MAX3232

Customer needs an IBIS model for the MAX232E.

We see that there is a model for the MAX3232E.

Is it accurate to use the MAX3232E IBIS model in leu of a model for the MAX232E?

If not, can we get an IBIS model for the MAX232E?  

Do you have another model to suggest that could work?

Thanks!

-Steve

  • 0
    TI__Guru 57900 points

    Hi Steve,

    The cable side drivers would differ a bit. 

    The output of the MAX232E has a larger swing on DOUT to +/-7V while the MAX3232E has a DOUT swing of +/-5V. 

    I looked at several of the 250kbps RS232 devices but didn't see any of them to have an IBIS model for them. It seems like we don't generally make IBIS models for these devices. One reason why I was told they aren't generally done is because the IBIS models don't accurately model the device's behavior. 

    -Bobby

  • 0
    Prodigy 10 points

    Hello Bobby,

    We are specifically looking for IBIS models of the CMOS/TTL drivers (ROUT/DIN).

    Thanks!

    -Garrett

  • 0 in reply to Garrett Stauffer
    TI__Guru 57900 points

    Hi Garrett,

    In that case the MAX3232 IBIS model should work fine for CMOS/TTL. Please go ahead and use that as a substitute.

    -Bobby