--- In LTspice@..., "s35148" <s35148@...> wrote:
Hi,
I'm having a problem with another program that use LTSpice to run the simulation. The schematic have a NAND gate, and I write a ".model" like the one below, but the LTSpice seems don't recognize the "d_nand" expression.
** 2 input NAND schmitt
.model A4093 d_nand ( in_family="4000-5_SCHMITT"
Hi
I have some simulations (one I am fighting with right this second) which use the 4093 NAND. My simulation uses a part from the CD4000.lib file that is in this group. (Look here: )
It's not a bad model, although the input thresholds and output levels are defined, but fixed (not changing with supply rails). I have added a behavioral source on the output for one of my simulations so that that it doesn't output more than the supply level, and I may have to put something on the input to similarly scale the thresholds for start-up simulations (or just do it the right way and build my own model!)
Hope that helps.
A.
