Attached are LTspice simulation model files I made for this popular IC. The model is not a stand-alone one; it requires use of input filter and output driver models found in the CD4000.lib and CD4000_v.lib libraries freely downloadable from the Yahoo LTspice User Group. The model is a development of the CD4020B model found in those libraries, with functional additions and modifications.
To use this new model you will need one or both of those libraries installed in the sub folder where LTspice can find them. Copy and paste the contents of the .txt file into the library/ies. Put the .asy file in LTspice's /lib/sym/CD4000 folder. I've included a .asc Test file. Have fun .
To use this new model you will need one or both of those libraries installed in the sub folder where LTspice can find them. Copy and paste the contents of the .txt file into the library/ies. Put the .asy file in LTspice's /lib/sym/CD4000 folder. I've included a .asc Test file. Have fun .