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Re: Looking for a IDT74CBTLV3253 model.
Gunoiar?wrote: ? ?"Also, I observe that the logic library contains only the graphical description on certain ?devices but lacks the simulation definitions." I am confused what you mean by that. Are you talking about the logic parts in the [Digital] section of the library?? They all have actual models already.? What's missing are the parameters that MAY need to be set, to get realistic performance. I am not aware of logic parts in the LTspice library that are graphical symbols only. Some analog parts, e.g., MESFETs, SCRs, IGBTs, valves/tubes, and varistors, are symbols only and you must provide the model. Regards, Andy |
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Re: Looking for a IDT74CBTLV3253 model.
Hello,
You could use the basic AND, NAND from the folder [Digital] plus a NMOS and PMOS transistor. See the circuit diagram in the datasheet.? ? I recommend to make a hierarchical schematic. This means you make top-level schematic with your circuit and a lower level schematic with the IDT74CBTLV3253. Best regards, Helmut |
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Looking for a IDT74CBTLV3253 model.
Hello one and all.
it's time to bite the bullet. Do some digital simulation on an analog simulator :) I need to design a four channel sequential track and hold. Part of this contains a 2 bit digital counter stirring 4 switches. it appears the the ?? IDT74CBTLV3253? integrates these functions well. Does any one have a model for it? please include an example how to use it. Also, I observe that the logic library contains only the graphical description on certain? devices but lacks the simulation definitions. Is that meaning that I have to develop an entire library? Sincerely G. ?????????????????????????????????????????????????????????????????????????????????????? |
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Re: Ferrite Beads
Dear Andy,
the Standard Ferrite Bead symbol in LTspice of Wurth is not encrypted. Once you selected a particular P/N and right click on the symbol, you can see the datas used for the simulation model. And can also edit them- if needed. The current dependent Ferrite bead Ferrite Bead (I)? model of Wurth is encrypted. |
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Re: Google groups
Indeed, fine LTspice group, I am, most times, happiest to take the advice that one "learns more with mouth closed" ;-)
Thanks to all of you who proffer your experience in both LTspice and electronics, generally! I try to find my way, using available web resources and the many thread topics to be found in the archives, thus do not, often, need to ask too basic a question .... Vielen Dank, Helmut, especially, but also many thanks to the "usual suspects" Barry Rowland Bayern (that's near Germany ;-) ) |
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Re: Doing the SYNC update with LTSPICEXVII 64/32 and LTSPICEIV
Hello wms121
You wrote : " Check your primary files in LTSPICEXVII where you should find the "scad.exe" files in LTSPICEIV. " I have XVIIx86.exe on 32 bits system and XVIIx64;exe on 64 bits on 64b systems. When I run? LTspiceXVII;exe the choice between 32 and 64b is not active. But it's not a problem. for me. All is clear and fine. So I don't understand your problem. Regards PhB |
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Re: Doing the SYNC update with LTSPICEXVII 64/32 and LTSPICEIV
Maybe I didn't read well enough, but what is the purpose of all this? Because if it's about doing sync updates for IV and XVII, all you have to do is fire up the desired version and do a normal sync update -- it will correctly update its version, IV to IV, XVII to XVI, 32 or 64 bit. Vlad ______________________ -- holding, among others: a universal analog/digital filter, block-level models for power electronics (and not only), math blocks with a more stream-lined approach, some digital ADC, DAC, (synchronous-)counter, JKflop, etc. |
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Re: Doing the SYNC update with LTSPICEXVII 64/32 and LTSPICEIV
theeten,
Check your primary files in LTSPICEXVII where you should find the "scad.exe" files in LTSPICEIV. You should see a 64 bit .exe file and a 32bit .exe file listed. Follow the procedures I gave for each program. IF something happens doing this please post (even if you just had to use the "administrator options" or similar). So far everyone who uses a decent workaround has not had a serious issue. W. Warren |
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Re: Doing the SYNC update with LTSPICEXVII 64/32 and LTSPICEIV
...just Windows 10 and Windows 7, although I have tested LTSPICEIV on WinXP and OpenSuse13 via WINE.
If I have any difficulties using Linux, OpenBSD or Solaris* I will post that info here. W. Warren *( haven't gotten WINE to work under Solaris 10) |
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Doing the SYNC update with LTSPICEXVII 64/32 and LTSPICEIV
..just found this one out.
NO I didn't get any help from Mike E., Helmut, or Andy. Just sort of "smelled my way around" using what I know about Windows Applications. To do the sync update: 1.?? Start with the main installed files of LTSPICEXVII....locate the 64 bit .exe and 32 bit .exe versions 2.?? Run the 64 bit first (be sure and close ALL open LTSPICE windows before you do this)..do not reboot. 3.?? Then run the 32 bit version (this is IF there are no "error messages"...if you have several new programs ?????? you have run in 64 bit mode, the procedure in 64 should take longer than the 32..assuming you have done ?????? minimal activities in LTSPICEXVII 32 bit)..again DO NOT reboot...program, unless it has errors it should ? ? ? not tell you to reboot. 4.?? Now do the sync and update for your original install of LTSPICEIV...(you may need to reboot here IF you ?????? are prompted for that)...then definitely do a reboot when finished. If you get lots of errors in any of these procedures..be sure and check the locations of the files...keep 64bit files in your 64 bit folders..or sections of Windows 10 or Win7...don't "mix them".? If you installed LTSPICEXVII your system may take any .asc denoted program into that program....and you may need to do drag and drop to again use LTSPICEIV.? Previous notes on where and how to keep files separate..(in this group) should be noted and observed. W. Warren |
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Re: Request for XVII
riscy00?wrote: ? ?"Was is possible for user to choose default file location for library collection elsewhere other than drive C" That would be a good question to ask the LTspice team. ?(That's not us!) ?You know how to reach them. ? ?"Also include a link at the top RHS of the XVII window that jump to this forum." This forum (the [LTspice] group) is not run by Linear Tech, nor is it an official forum of LTspice.? But it is mentioned in the Help pages.? Personally, I don't see a need to link directly to this group from the program itself. But again, that would be a suggestion for the LTspice team, not us. ? ?"Really useful to apply option to enable window control style on schematic, ie CNTR-D duplicate, CNTR-C copy, CNTR-V paste, CNTR-X cut, CNTR-S save, select and delete and so on or have custom key list with user choice (Save/load).?" Are you talking about key bindings, Hotkeys? LTspice has user-programmable Hotkeys.? See Control Panel, Drafting Options tab, Hot Keys. Andy |
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Re: Google groups
John Woodgate
¿ªÔÆÌåÓýIt's a good point, but 'few' is probably an underestimate, judging by the number of people requiring approval to post who joined the group several years ago. The lurkers might even be a majority; it's possible to trawl the membership list to tell, but I'm not going to do that. ? With best wishes DESIGN IT IN! OOO ¨C Own Opinions Only J M Woodgate and Associates Rayleigh England ? Sylvae in aeternum manent. ? From: LTspice@... [mailto:LTspice@...]
Sent: Saturday, July 30, 2016 6:07 PM To: LTspice@... Subject: Re: [LTspice] Google groups ? ? Only thing I want to add is I would think there might be a few people who don't have a general need or haven't needed to post anything that lurk, and learn vicariously through others questions. |
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Request for XVII
Hi Was is possible for user to choose default file location for library collection elsewhere other than drive C, ie I keep all data in drive D which is sync or shared by external server.? The XVII can stay in program file ie drive C for example. Also include a link at the top RHS of the XVII window that jump to this forum. The google search does not provide top level?results?LTSpice from Yahoo.? Really useful to apply option to enable window control style on schematic, ie CNTR-D duplicate, CNTR-C copy, CNTR-V paste, CNTR-X cut, CNTR-S save, select and delete and so on or have custom key list with user choice (Save/load).? Thanks |
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Re: XVII
---In LTspice@..., <ai.egrps@...> wrote : > One Mike wrote: >>> "Windows XP is not supported." > The other Mike wrote: >> "XVII runs fine in Wine 1.2.2 in Ubuntu 10.04. This version is >> from April, 2010 and it only supports Win 95 to Win XP." > I think this was mentioned before. Although a version of Wine > might emulate only up to Windows XP, it is not Windows XP itself, > and it might have many more "hooks" and low-level capabilities > than an authentic MS-Windows XP has. A direct comparison would not > be fair. > Andy Pure speculation. So you think they have a magic crystal ball that let them look 6 years into the future and add the routines needed by XVII? I want one! I think it is more likely they skipped some that Mike needs for the new multiple monitor display, or something like that. That's why it won't load in XP but runs fine in Wine. Also pure speculation. However, since IV will continue to be supported, it no longer matters. I can continue to use IV, and keep XVII as a backup for troubleshooting in case I run into a snag. I think others can do the same. Mike |
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