LTspice model for Level Shifter MC14504

Discussion in 'General Electronics Chat' started by engmsf, Oct 17, 2014.

  1. engmsf

    Thread Starter New Member

    Oct 16, 2014
    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.
    IBIS Model for MC14504BCP Behavioral Spice Model for Logic Level Shifter MC14504
  2. ronv

    AAC Fanatic!

    Nov 12, 2008
    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.