I am using LT spice. To simulate digital circuits with 74HC parts I have downloaded 74HC.lib file . How to add this in LTspice to get symbols/?

Also are there additional files need to download ?

Regards,
Amod

 

hi amod,
Welcome to AAC.
You need the 'asy' [ symbol files], which site did you download the 74HC.lib .
E

 

If you upload my collection, there are models and symbols in it. At the same time, the symbols contain links to the necessary libraries (as opposed to symbols from the Yahoo group). To simulate enough to put a symbol on the scheme and do not refer to the library.
link:
http://bordodynov.ltwiki.org

 

If you upload my collection, there are models and symbols in it. At the same time, the symbols contain links to the necessary libraries (as opposed to symbols from the Yahoo group). To simulate enough to put a symbol on the scheme and do not refer to the library.
link:
http://bordodynov.ltwiki.org

Hi Bordodynov,

Thanks for suggestion. I will upload from your link and then try. I will revert back to you.

 

hi amod,
Welcome to AAC.
You need the 'asy' [ symbol files], which site did you download the 74HC.lib .
E

Hi eric,

I downloaded from Yahoo groups. Also I downloaded 74HC.ZIP which has ASY files. When I copied them into respective folders , I could not see them when I select component in LTSpice.
Can you pl. explain me where is path to copy them.
My path is C:\Program Files\LTC\LTspiceXVII\lib. Will this work?

Amod

 

hi,
I am using LTSpice IV
This is a clip showing the .INC 74HC.lib

The Libs are in the Lib sub folder

C:\Program Files\LTC\LTspiceIV\lib

E

 

If you follow my link, then you can read where you need to put the library.

 

My path is C:\Program Files\LTC\LTspiceXVII\lib. Will this work?

Not if you are using Windows10. The default path should be ...Users\User\Documents\LTspiceXV11\lib\sub for the 74HC.lib file and ...Users\User\Documents\LTspiceXV11\lib\asy for the symbol file. Alternatively, LTspice Control Panel allows you to specify other paths.

 

Hi All,

I could simulate now. Thank to you all for support. Will be in touch. Just one query as below. I simulated counter 74HC161. Here all q0 to q3 o/p are displayed in same axis. Is there any facility where we can put each o/p one below another so that all can be clear?

Thanks,
Amod

 

Just one query as below. I simulated counter 74HC161. Here all q0 to q3 o/p are displayed in same axis. Is there any facility where we can put each o/p one below another so that all can be clear?

Maybe a picture of what you’re talking about will help?

 

Hi All,

I could simulate now. Thank to you all for support. Will be in touch. Just one query as below. I simulated counter 74HC161. Here all q0 to q3 o/p are displayed in same axis. Is there any facility where we can put each o/p one below another so that all can be clear?

Thanks,
Amod

hi,
Download and unzip this zip file to access the dview.lib and assy,
Do you need an example of usage.?

E

Added example.

 

Is there any facility where we can put each o/p one below another so that all can be clear?

Go to Plot Settings and select Add Plot Pane.
Repeat for as many traces as you want separated.
The just drag the desired trace to the new pane.

 

Go to Plot Settings and select Add Plot Pane.
Repeat for as many traces as you want separated.
The just drag the desired trace to the new pane.

Ah, I totally misunderstood what the TS asked. @amod.mujumdar , crutschow has it spot on.

 

Dear All,

Thanks !! I could do this.

Amod

 

Hi Again,

I am able to simulate different blocks of digital circuit in LT Spice. If I have two different schematics then can I integrate them to have single simulation. I mean in one schematic o/p signal is input to schematic in other. Can we do this or entire schematic I need to draw in same single schematic ?

Thanks.
Amod

 

hi amod,
What you are asking sounds possible.
Post the two asc files and I will give it a go.
E

 

Hi Eric,
First file generating signal ` END_CYCL at counter 74HC161 and in second file it is applied to JK flipflps K inputs.

 

hi,
Downloaded OK, will post result back later.
E

EDIT:
Do you mean like combined circuit.?

BTW:
Do not use the same label name for different Nodes: you have OPEN twice.
LTS will think you mean to have them connected together.!

 

Yes Eric it is a same net OPEN goes two to three points. There fore I gave same net name.
Amod

 

OK,
So is the combined circuit ,what you were asking to be done.?

E