microcej ,
Multisim does not natively support the *.IBS standard. This *.IBS file that you have simulates the fall/rise time parameters, impedance and loading parameters of each pin only. It is useful for simulating timing parameters or to predict whether loading effects might influence the timing of the device, however this type of model usually does not simulate the functional/logical behavior of the part.
For many of our digital parts, in lieu of IBIS, we use a XSPICE / code model call "d_chip" in conjunction with our pin driver models to model the various logic chips with various logic standards (ex TTL or CMOS, etc...). If you look at the model details of many of our digital parts this d_chip model is the core part of the model and it can model digital logic and timing functionality. It would be conceivable to use the .IBIS data to add timing/transition information for Multsim code models using d_chip, however the logical/functional behavior would still need to be manually created from the datasheet (as this data is not embedded in the .IBIS information).
For simple parts this is relatively straight forward, however for more sophisticated parts this is non-trivial. However If you are interested in understanding how this works, I'd be happy to start another thread to give additional details on using d_chip.
Regards,
Patrick Noonan
Business Development Manager
National Instruments - Electronics Workbench Group
50 Market St. 1-A
S. Portland, ME 04106
Email: patrick.noonan@ni.com
Tel. (207) 892-9130
Fax. (207) 892-9508
