Author Topic: TI datasheets  (Read 4245 times)

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Offline PlainNameTopic starter

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TI datasheets
« on: May 10, 2021, 06:29:59 pm »
Perhaps I've been hiding under a stone, but I just went looking for a TI datasheet for download (555 as it happens) and it ain't available. Not at RS, not at LCSC, not even at TI. What is available is an online datasheet, which is about a tenth of the value of a downloadable one.

Is this the direction the industry is taking, forcing designers/users to visit their website, or is it just TI being obnoxious?
 

Offline PlainNameTopic starter

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Re: TI datasheets
« Reply #1 on: May 10, 2021, 06:36:44 pm »
Hmmm. Forget that - seems to be my browsers. Plural. A very recently updated Vivaldi works.

What I was seeing was the download hotlink, but clicking it just got a page saying nothing was there. Turned off all the ad-blocking (which is duplicated in Vivaldi anyway) with no greater success. The old fallback of IE didn't even get the 'nothing here' page.
 

Offline sandalcandal

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Re: TI datasheets
« Reply #2 on: May 10, 2021, 06:41:01 pm »
Maybe you're clicking on the wrong link? I know TI has options to view their datasheets in an "online" webpage format rather than a downloadable PDF but I can see the PDF datasheet for xx555 just fine? https://www.ti.com/lit/ds/symlink/ne555.pdf
I'm using Google Chrome.
Disclosure: Involved in electric vehicle and energy storage system technologies
 

Offline Robert Smith Eco Warrior

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Re: TI datasheets
« Reply #3 on: May 10, 2021, 06:43:46 pm »
Maybe you're clicking on the wrong link? I know TI has options to view their datasheets in an "online" webpage format rather than a downloadable PDF but I can see the PDF datasheet for xx555 just fine? https://www.ti.com/lit/ds/symlink/ne555.pdf
I'm using Google Chrome.

I was expecting that to be one of those 'typed on a type writer and hand drawn diagrams then photocopied a few times' sorts of data sheets.
 

Offline PlainNameTopic starter

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Re: TI datasheets
« Reply #4 on: May 10, 2021, 06:54:11 pm »
Quote
but I can see the PDF datasheet for xx555 just fine? https://www.ti.com/lit/ds/symlink/ne555.pdf

That gave me the page not found error. In fact, clicking your link gives me that.

Edit: So I get set up to look at what the browser is asking for and why it's not getting that, and blow me if that exact same URL (copied for your link) works when pasted into the address bar. Just doesn't when clicked on. Weird.
« Last Edit: May 10, 2021, 06:57:26 pm by dunkemhigh »
 
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Offline JPortici

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Re: TI datasheets
« Reply #5 on: May 11, 2021, 04:53:52 am »
Bizarre. I'm experiencing the same issue on firefox
 

Offline rdl

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Re: TI datasheets
« Reply #6 on: May 11, 2021, 07:03:31 am »
I tried and it seems something is not working right.

Pale Moon says it can't find the file.
Firefox says the PDF might not be displayed correctly (it doesn't display at all).

I go to the TI page for the NE555 and the link to the datasheet is:

Code: [Select]
https://www.ti.com/lit/gpn/NE555

But clicking it actually goes (or tries to go) to this mess:

Code: [Select]
https://www.ti.com/lit/ds/symlink/ne555.pdf?ts=1620675204475&ref_url=https%253A%252F%252Fwww.ti.com%252Fstore%252Fti%252Fen%252Fp%252Fproduct%252F%253Fp%253DNE555P%2526HQS%253Dti-null-null-ds360-invf-store-ds360-wwe

Which probably should work the same as https://www.ti.com/lit/ds/symlink/ne555.pdf, but it doesn't work. If I try to save the file it's just a zero byte size nothing. I haven't had any trouble getting data sheets from TI.com in the past.
 
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Offline JPortici

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Re: TI datasheets
« Reply #7 on: May 11, 2021, 07:13:16 am »
update: not working on my mac, working on my pc
 

Online Ian.M

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Re: TI datasheets
« Reply #8 on: May 11, 2021, 07:30:21 am »
Its not just incoming links from eevblog.com that get blocked.
e.g. here's one to the same NE555 datasheet via TinyURL with the same failure to load: https://preview.tinyurl.com/TI-NE555

I'm using Chromium 90.0.4430.72 on Win10 x64, with uBlock Origin 1.35.2

Some idiot web admin at T.I. must have disabled deep linking.
*NOT* *COOL* !  Anyone designing an OSHW project is likely to go elsewhere for their chips if they cant link to OEM documentation.

@rdl: you've got a stray comma appended in your link above   :-\
« Last Edit: May 11, 2021, 10:31:29 am by Ian.M »
 

Offline exe

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Re: TI datasheets
« Reply #9 on: May 11, 2021, 09:08:44 am »
Everything works for me, I see the pdf. May be you guys have browser extensions that block things? Or, may be, it's based on the country. Sometimes CDNs can behave weird.
 

Online Ian.M

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Re: TI datasheets
« Reply #10 on: May 11, 2021, 09:48:11 am »
I've still got Internet Explorer on this Win10 Pro x64  20H2 box, and can confirm its also borked for me under IE and an absolutely 'vanilla' MS Edge. 

I've just fired up an old Pi running Rasbian 'Stretch'.  Its borked in all browsers I've got installed there.

My current public IP address geolocates to the UK.

Exe may be onto something - it may be CDN wierdness that T.I are only marginally (if at all) aware of.
 

Offline tooki

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Re: TI datasheets
« Reply #11 on: May 11, 2021, 10:07:38 am »
The link works fine for me. Probably a CDN issue, like you guys have said.
 

Offline PlainNameTopic starter

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Re: TI datasheets
« Reply #12 on: May 11, 2021, 10:55:49 am »
Bizarely, the link in this thread that didn't work for me yesterday works fine today. All of them. But the TI website one still doesn't. I have decentraleyes installed (addon for dealing with CDNs) but even removing that doesn't help. And it's not installed in another browser which also doesn't work. I am thinking that the mess pointed to by rdl is some new W3C thing that only recent Chrome-based stuff knows about, or something like that.

Anyway, let's not get too distracted. Recall that what first caught my attention was the lack of datasheets on RS for TI products, and further searching showed the same at LCSC: TI product? no datasheet; non-TI? datasheet. There are some counter-examples but as a general rule that seems to be the position, and it seems a rather strange one to encourage design-in of parts.

I've emailed RS to ask about this and will report back...
 

Offline Wolfram

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Re: TI datasheets
« Reply #13 on: May 11, 2021, 11:07:11 am »
The direct link to the 555 datasheet just leads to a blank page in Chrome 88.0.4324.190, trying to access it from eastern France. In Firefox, pressing the link from the thread loads the PDF reader plugin, but without any contents and the warning "This PDF document might not be displayed correctly.". When I press "Open With Different Viewer" it tries to download a 0-byte file. I also tried pasting the link directly into the address bar and it didn't seem to make a difference.

I've had issues with loading datasheets on the TI website for a while, but not consistently.
 

Offline sandalcandal

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Re: TI datasheets
« Reply #14 on: May 11, 2021, 12:31:20 pm »
I'm in Australia and I've never had any issues with TI datasheets loading (that I can remember). Is there anyone outside the EU with issues? Maybe an issue with their EU mirror? Perhaps try a VPN?
Disclosure: Involved in electric vehicle and energy storage system technologies
 

Offline PlainNameTopic starter

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Re: TI datasheets
« Reply #15 on: May 11, 2021, 01:17:24 pm »
Quote
I've emailed RS to ask about this and will report back...

Quick response from them to say, paraphrased, some manufacturers don't make their datasheets available.
 

Offline tooki

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Re: TI datasheets
« Reply #16 on: May 11, 2021, 05:14:55 pm »
I'm in Australia and I've never had any issues with TI datasheets loading (that I can remember). Is there anyone outside the EU with issues? Maybe an issue with their EU mirror? Perhaps try a VPN?
Someone from USA reported issues earlier in the thread.

Anyway, let's not get too distracted. Recall that what first caught my attention was the lack of datasheets on RS for TI products, and further searching showed the same at LCSC: TI product? no datasheet; non-TI? datasheet. There are some counter-examples but as a general rule that seems to be the position, and it seems a rather strange one to encourage design-in of parts.
Don’t forget that neither RS nor LCSC is an authorized TI distributor. Not sure if you are aware that 2 years ago, TI ended distribution through all but a tiny handful of distributors (Digi-Key and Mouser being the main two). Everyone else got dropped. I figure they’re selling off their remaining stock, but their business relationship with TI is over. That may have had repercussions with regards to sharing documentation.


Quote
I've emailed RS to ask about this and will report back...

Quick response from them to say, paraphrased, some manufacturers don't make their datasheets available.
LMAO at that brain-dead response. RS is probably still salty about being dropped.
 

Offline tooki

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Re: TI datasheets
« Reply #17 on: May 11, 2021, 05:17:13 pm »
An idea for those having trouble: try changing your DNS server address to see if the problem goes away. For testing purposes, try Google’s DNS: 8.8.8.8
 

Offline PlainNameTopic starter

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Re: TI datasheets
« Reply #18 on: May 11, 2021, 05:55:28 pm »
Quote
Not sure if you are aware that 2 years ago, TI ended distribution through all but a tiny handful of distributors (Digi-Key and Mouser being the main two). Everyone else got dropped.

Ah, I didn't know that. Even so, I'd've thought they would be keen to have their data spread far and wide - in the end it is advertising, and we all know how difficult it is to block that!

Re: DNS. Don't think it's that since Vivaldi works, but I'll try changing it when I'l less likely to screw up something major...

Edit: Vivaldi didn't work originally, but it was a relatively old version. And update later it was fine, which is partly what makes me think it is some new W3C thing.

 

Offline rsjsouza

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Re: TI datasheets
« Reply #19 on: May 11, 2021, 06:19:17 pm »
I suspect the links were indeed borked at the server and don't work with all browsers. I can't access them from a Chromium browser on my laptop but I am able to do so on my cellphone with FF and Chrome.

That or there may be cached copies being returned across the various places.

Just to keep up with the trend, I send a copy attached I just downloaded from my phone.

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Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Offline rdl

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Re: TI datasheets
« Reply #20 on: May 11, 2021, 06:35:18 pm »
Tried again this morning - Pale Moon and Firefox both with NoScript and uBlock Origin installed but turned off. The browser just does a document GET and returns a 304 error. After about 6 or 7 reloads I did finally get the file with Pale Moon. Pale Moon is set to reject all cookies. Firefox rejects only 3rd party. After a bit of experimenting it seems I can get the file maybe 10-15% of the time, but mostly just nothing.
 

Offline exe

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Re: TI datasheets
« Reply #21 on: May 11, 2021, 07:51:26 pm »
May be without cookies CDN thinks you are a bot.
 

Offline amyk

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Re: TI datasheets
« Reply #22 on: May 12, 2021, 12:06:56 am »
I've had problems downloading stuff from TI before (connections would just mysteriously time out), and if I switched to my secondary ISP it would work. But the https://www.ti.com/lit/ds/symlink/ne555.pdf direct link currently works. Looking at my proxy request logs I see that it actually tried 3 times to connect, the first two times the server appears to have closed the connection silently.
 

Offline rdl

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Re: TI datasheets
« Reply #23 on: May 12, 2021, 12:09:35 am »
I don't know what the CDN would be in this case. Both browsers show only sending request to TI.com for the pdf, neither NoScript or uBlock Origin show any other connections that could be blocked.

Tried again just now and see some evidence cookies are possibly involved. Firefox can get the file 4 or 5 times in a row, while Pale Moon cannot. However, that was not the case this morning even though settings have not been changed.
 

Offline tooki

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Re: TI datasheets
« Reply #24 on: May 12, 2021, 07:42:27 pm »
So I've run into the problem now, trying to download https://www.ti.com/lit/ug/scyd013b/scyd013b.pdf on my MacBook.

Here's what we can rule out as being individually responsible:
- ISP and LAN: it fails on the MacBook, but works on my iPhone, using the same Wi-Fi (with cellular data disabled to ensure the iPhone isn't failing over to cellular, which it will do normally), so in isolation, it's not the ISP or LAN. HOWEVER, if I use my iPhone as a hotspot and let the MacBook tether to it, then it loads on the MacBook!!
- browser choice: it's the same in Safari, Chrome, and Firefox
- OS: since it works when changing ISP, it can't be the OS
- browser configuration (cookies, extensions, etc): since it works when changing ISP, it can't be configuration
- JavaScript: same with JS on or off
- DNS: I tried with my ISP and Google DNS, no change
- TI policy: since it works when changing ISP or device, it's not policy. Moreover, not all PDFs seem to be affected. I can load other TI PDFs just fine.
- referrer: same result whether by clicking a link, pasting in the URL, or attempting to download the URL directly

So clearly this is a very, very, very narrowly triggered issue. If I had to guess, a router configuration error somewhere at TI which only rears its head when a particular route is selected, and gets cached somewhere by something.
« Last Edit: May 12, 2021, 07:46:26 pm by tooki »
 


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