Question on LT Spice equivalents...

P

Paul Burridge

Guest
Hi,

I need LT spice models for the TC7SU04F and 74HC04. However I imagine
Linear make their own generic equivalents of these popular ICs under
different designations. Either would suffice, I guess. Does anyone
know where they might be obtainable from? I've searched Linear's site
but without knowing which of their LT.series of chips are the same as
the above, I'm somewhat in the dark..

Thanks,

p.
--

The BBC: Licensed at public expense to spread lies.
 
Hi Paul,

A large part of the reason that Linear Technology calls themselves
"Linear" is they make only chips that are used in analog circuits.

The chips you mention are digital.

-Chuck Harris

Paul Burridge wrote:
Hi,

I need LT spice models for the TC7SU04F and 74HC04. However I imagine
Linear make their own generic equivalents of these popular ICs under
different designations. Either would suffice, I guess. Does anyone
know where they might be obtainable from? I've searched Linear's site
but without knowing which of their LT.series of chips are the same as
the above, I'm somewhat in the dark..

Thanks,

p.
Click to expand...
 
Paul Burridge[pb@osiris1.notthisbit.co.uk] iscrivinhated/wrotou na
mensage/messagem <ppf020dae84oqcflcsp9ltcelvfnrrinu4@4ax.com> no grupo de
newstícias sci.electronics.cad a exatos Wed, 04 Feb 2004 00:44:54 +0000 :

Hi,

I need LT spice models for the TC7SU04F and 74HC04. However I imagine
Linear make their own generic equivalents of these popular ICs under
different designations. Either would suffice, I guess. Does anyone
know where they might be obtainable from? I've searched Linear's site
but without knowing which of their LT.series of chips are the same as
the above, I'm somewhat in the dark..
Click to expand...
Linear makes only _analog_ IC's, I think. 74HCxx are digital.

--
ChaosŽ - posting from Brazil
wizard_of_yendor.666@hotmail.com
remove the number of the beast - 666
 
On Tue, 03 Feb 2004 19:56:23 -0500, cfharris@erols.com said...
Hi Paul,

A large part of the reason that Linear Technology calls themselves
"Linear" is they make only chips that are used in analog circuits.
Click to expand...
And as I mentioned before, that's also why LTSpice has no circles
:)
The chips you mention are digital.

-Chuck Harris

Paul Burridge wrote:
Hi,

I need LT spice models for the TC7SU04F and 74HC04. However I imagine
Linear make their own generic equivalents of these popular ICs under
different designations. Either would suffice, I guess. Does anyone
know where they might be obtainable from? I've searched Linear's site
but without knowing which of their LT.series of chips are the same as
the above, I'm somewhat in the dark..

Thanks,

p.
Click to expand...
--
Best Regards,
Mike
 
On Wed, 04 Feb 2004 00:44:54 +0000, Paul Burridge
<pb@osiris1.notthisbit.co.uk> wrote:

Hi,

I need LT spice models for the TC7SU04F and 74HC04. However I imagine
Linear make their own generic equivalents of these popular ICs under
different designations. Either would suffice, I guess. Does anyone
know where they might be obtainable from? I've searched Linear's site
but without knowing which of their LT.series of chips are the same as
the above, I'm somewhat in the dark..

Thanks,

p.
--

The BBC: Licensed at public expense to spread lies.
Click to expand...
You should join http://groups.yahoo.com/group/LTspice/
In the files section there is a 74HC library. The models are somewhat
simplified for efficiency. You can un-comment some parts in the model
to make it more accurate.

Reinier
 
Paul Burridge wrote:
Hi,

I need LT spice models for the TC7SU04F and 74HC04. However I imagine
Linear make their own generic equivalents of these popular ICs under
different designations. Either would suffice, I guess. Does anyone
know where they might be obtainable from? I've searched Linear's site
but without knowing which of their LT.series of chips are the same as
the above, I'm somewhat in the dark..
Click to expand...
I have reasonable analogue .subckts aproximations to basic hc gates in
my SS lib.

Kevin Aylward
salesEXTRACT@anasoft.co.uk
http://www.anasoft.co.uk
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.

"That which is mostly observed, is that which replicates the most"
http://www.anasoft.co.uk/replicators/index.html

"quotes with no meaning, are meaningless" - Kevin Aylward.
 
Paul Burridge wrote:
Hi,

I need LT spice models for the TC7SU04F and 74HC04. However I imagine
Linear make their own generic equivalents of these popular ICs under
different designations. Either would suffice, I guess. Does anyone
know where they might be obtainable from? I've searched Linear's site
but without knowing which of their LT.series of chips are the same as
the above, I'm somewhat in the dark..
Click to expand...
Paul,
I have to agree with Genome and Thompson- your abilities in electronics are
not up to using a tool like Spice, and I'm afraid will never be. :-(
Most important is to learn the basics, not playing around with something you
do not understand. With this question you again reveal in an embarassing way
your ignorance.
Both parts are inverters made in HCMOS technology. Fairchild pioneered many
of these, so go to their website, click on logic ICs, HC and models...and
you can request a model:
http://www.fairchildsemi.com/models/email_model_file.jsp?file=hc04tm0.inc

They offer 3 different models for every gate: fast, typical and slow.
You can already see, digital parts are not so easy to spice and it is
usually not needed, unless you use them in an analog way.
Since you might want to make an oscillator or linear amplifier with it, a
model will be handy. Read also the datasheet, have a look at the internal
circuitry and try to understand how it works.
For this you need to know how a transistor or in this case a MosFet is
working. Read it up in AoE. Do not skip these fundamentals.

ciao Ban
Bordighera, Italy
 
Ban wrote:

Paul Burridge wrote:

Hi,

I need LT spice models for the TC7SU04F and 74HC04. However I imagine
Linear make their own generic equivalents of these popular ICs under
different designations. Either would suffice, I guess. Does anyone
know where they might be obtainable from? I've searched Linear's site
but without knowing which of their LT.series of chips are the same as
the above, I'm somewhat in the dark..



Paul,
I have to agree with Genome and Thompson- your abilities in electronics are
not up to using a tool like Spice, and I'm afraid will never be. :-(
Most important is to learn the basics, not playing around with something you
do not understand. With this question you again reveal in an embarassing way
your ignorance.
Click to expand...
I really don't understand why some people feel this urge to bash Paul
all the time. What are you trying to achieve with that? Demoralize him?

I have seen posts on this newsgroup that are lots more ignorant than
his. Heck, he's trying at least. And he's not ashamed of asking even
when in danger to make a fool of himself. Some of the threads he kicked
off developed into interesting discussions (even when it wasn't his merit).

--
Cheers
Stefan
 
On Wed, 04 Feb 2004 09:28:50 GMT, "Ban" <bansuri@web.de> wrote:

Paul Burridge wrote:
Hi,

I need LT spice models for the TC7SU04F and 74HC04. However I imagine
Linear make their own generic equivalents of these popular ICs under
different designations. Either would suffice, I guess. Does anyone
know where they might be obtainable from? I've searched Linear's site
but without knowing which of their LT.series of chips are the same as
the above, I'm somewhat in the dark..


Paul,
I have to agree with Genome and Thompson- your abilities in electronics are
not up to using a tool like Spice, and I'm afraid will never be. :-(
Click to expand...
I completely disagree. I've made excellent progress with Spice and
though I have much yet to learn, I'm not daunted by the prospect of
it. Plus I take the 'advice' of the defeatists and detractors with a
pinch of salt. :p
So I didn't know Linear didn't make digital ICs. Big F*cking Deal! ;-)
--

The BBC: Licensed at public expense to spread lies.
 
On Wed, 04 Feb 2004 12:45:46 +0100, Stefan Heinzmann
<stefan_heinzmann@yahoo.com> wrote:


I really don't understand why some people feel this urge to bash Paul
all the time. What are you trying to achieve with that? Demoralize him?
Click to expand...
If so they're wasting their time.
I have seen posts on this newsgroup that are lots more ignorant than
his. Heck, he's trying at least. And he's not ashamed of asking even
when in danger to make a fool of himself. Some of the threads he kicked
off developed into interesting discussions (even when it wasn't his merit).
Click to expand...
Thanks, Stefan. I'm afraid once you read a bit more of what goes on
here you'll see that a lot of folks are just bitterly envious of my
overwhelming popularity. Hence the frequent digs aimed at me by those
who feel they don't get due veneration for what *they* post!

--

The BBC: Licensed at public expense to spread lies.
 
Paul Burridge schrieb:

On Wed, 04 Feb 2004 12:45:46 +0100, Stefan Heinzmann
stefan_heinzmann@yahoo.com> wrote:



I really don't understand why some people feel this urge to bash Paul
all the time. What are you trying to achieve with that? Demoralize him?


If so they're wasting their time.

I have seen posts on this newsgroup that are lots more ignorant than
his. Heck, he's trying at least. And he's not ashamed of asking even
when in danger to make a fool of himself. Some of the threads he kicked
off developed into interesting discussions (even when it wasn't his merit).


Thanks, Stefan. I'm afraid once you read a bit more of what goes on
here you'll see that a lot of folks are just bitterly envious of my
overwhelming popularity. Hence the frequent digs aimed at me by those
who feel they don't get due veneration for what *they* post!
Click to expand...
It wasn't my impression so far that envy played a significant role.
Personality clashes happen. But some people (and I exclude neither you
nor myself) sometimes seem to need a reminder that a newsgroup is a
public place. Worse, the postings are preserved for eternity.

--
Cheers
Stefan
 
Reinier Gerritsen wrote...
Paul Burridge wrote:

I need LT spice models for the TC7SU04F and 74HC04.

You should join http://groups.yahoo.com/group/LTspice/
In the files section there is a 74HC library. ...
Click to expand...
Paul, if you examine Toshiba's TC7SU04 datasheet and
the datasheet of 'U04 ICs from other companies you'll
see they're all very similar, so you can use a generic
model with a name similar to 74HCU04. Single-gate ICs
are intended to have similar properties to a single
gate from a six-gate package. Also, spice models of
multi-element ICs model only one element.

Thanks,
- Win

whill_at_picovolt-dot-com
 
Stefan Heinzmann wrote:
I really don't understand why some people feel this urge to bash Paul
all the time. What are you trying to achieve with that? Demoralize
him?
Click to expand...
It was not meant to demoralize him, but to help him find solutions himself.
For example if you type "74HC04 spice model" into Google, this page comes
right on top:
http://homepages.which.net/~paul.hills/Circuits/Spice/ModelIndex.html

I also do not (only) bash him but give constructive advice. To read up
the basics and where to find models.
And maybe you have realized, with a few people here there seems no
progress being made. They get excellent answers to all their many questions,
but even after years they still seem on the same basic level as before.

Now if somebody gives an answer to have a look at the basics, what all of
us have been doing in the beginning of our studies, and the person replies:
"who are you to tell me that?". Then he asks for trouble, and he rather
should apologize.

Stefan, here in usenet you have to be courageous to question and
appreciative to all the answers that are coming, even if it hurts your ego.
Hope you understand my point?

ciao Ban
 
It wasn't my impression so far that envy played a significant role.
Personality clashes happen.
Click to expand...
The consensus by those who know is that the idiot is a troll. Any
idiotic troll can relentlessly rattle off superficial questions, and
notice there is little to no follow-up on his part. He most certainly is
seriously brain-damaged from alcohol abuse.

But some people (and I exclude neither you
nor myself) sometimes seem to need a reminder that a newsgroup is a
public place.
Click to expand...
So is a toilet.

Worse, the postings are preserved for eternity.
Click to expand...
Same with drain waste...

USENET is another failure, much like television with its early promise
of providing easily accessed educational and cultural resource, and its
degeneration into worthless trash content, USENET has also degenerated.
 
Winfield Hill wrote:
[..snip...]

Give us a break! The reason he wants a SPICE model is because HE CANNOT
READ A DATASHEET! It's ridiculous to respond with a real answer, he
doesn't rate it.
 
"Paul Burridge" <pb@osiris1.notthisbit.co.uk> wrote in message
news:ppf020dae84oqcflcsp9ltcelvfnrrinu4@4ax.com...
Hi,

I'm somewhat in the dark..

Thanks,

p.
--

The BBC: Licensed at public expense to spread lies.
Click to expand...
Remove head from Bum.

I really don't mean to be offensive, I just couldn't resist.

DNA
 
On Wed, 4 Feb 2004 14:12:39 -0000, the renowned "Genome"
<genome@nothere.com> wrote:

"Paul Burridge" <pb@osiris1.notthisbit.co.uk> wrote in message
news:ppf020dae84oqcflcsp9ltcelvfnrrinu4@4ax.com...

Hi,

I'm somewhat in the dark..

Thanks,

p.
--

The BBC: Licensed at public expense to spread lies.

Remove head from Bum.

I really don't mean to be offensive, I just couldn't resist.
Click to expand...
<ROTFLMAO>

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
 
On 4 Feb 2004 05:19:23 -0800, Winfield Hill
<Winfield_member@newsguy.com> wrote:

Reinier Gerritsen wrote...

Paul Burridge wrote:

I need LT spice models for the TC7SU04F and 74HC04.

You should join http://groups.yahoo.com/group/LTspice/
In the files section there is a 74HC library. ...

Paul, if you examine Toshiba's TC7SU04 datasheet and
the datasheet of 'U04 ICs from other companies you'll
see they're all very similar, so you can use a generic
model with a name similar to 74HCU04. Single-gate ICs
are intended to have similar properties to a single
gate from a six-gate package. Also, spice models of
multi-element ICs model only one element.
Click to expand...
Thanks, Win. It seems you're right. The 74HCx model available on the
yahoo groups site (by Helmut!) does the trick very well indeed.
--

The BBC: Licensed at public expense to spread lies.
 
On Wed, 4 Feb 2004 14:12:39 -0000, "Genome" <genome@nothere.com>
wrote:


I really don't mean to be offensive, I just couldn't resist.
Click to expand...
Yes, I've noticed.
--

The BBC: Licensed at public expense to spread lies.
 
On Wed, 04 Feb 2004 13:49:45 GMT, Fred Bloggs <nospam@nospam.com>
wrote:

USENET is another failure, much like television with its early promise
of providing easily accessed educational and cultural resource, and its
degeneration into worthless trash content, USENET has also degenerated.
Click to expand...
Yes, largely thanks to vulgar, abusive bucket-mouths like you and your
pal, Genome.

--

The BBC: Licensed at public expense to spread lies.
 
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