Hi all,

I'm a beginner in LTspice and have an ON Semiconductor MC14504BCP chip that I would like to simulate as part of my overall circuit. There are IBIS file and LIB file in the links below. I am having a difficult time trying to figure out how to take these pieces of information available and converting it to a compatible LTspice file format (.asy/.sub).

Can anyone with a lot of knowledge in this area give me a step by step guide to do this? Or generate the necessary LTspice files for me. Thanks and much appreciated in advance.

http://www.onsemi.com/pub_link/Collateral/MC14504B-D.PDF

http://www.onsemi.com/PowerSolutions/supportDoc.do?type=models&rpn=MC14504B
IBIS Model for MC14504BCP

http://www.analog-innovations.com/subcircuits.html
MC14504_Behavioral_Subcircuit.zip Behavioral Spice Model for Logic Level Shifter MC14504

 

I'm no whiz on the digital logic, but the easiest way might be to use the standard digital models in spice and set the thresholds and speeds to match the 14504. I'll try to take a look at the sub file when I can get to the other computer. Eric or Alec are spice experts, maybe they will come along.