TI datasheets - Page 1
Forum section: electronics / general

author: PlainName
author_rank: Super Contributor
timestamp: May 10, 2021, 06:29:59 pm
content: 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?

author: PlainName
author_rank: Super Contributor
timestamp: May 10, 2021, 06:36:44 pm
content: 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.

author: sandalcandal
author_rank: Unknown
timestamp: May 10, 2021, 06:41:01 pm
content: 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.pdfI'm using Google Chrome.

author: Robert Smith Eco Warrior
author_rank: Regular Contributor
timestamp: May 10, 2021, 06:43:46 pm
content: Quote from: sandalcandal on May 10, 2021, 06:41:01 pmI 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.

author: PlainName
author_rank: Super Contributor
timestamp: May 10, 2021, 06:54:11 pm
content: QuoteThat 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.

author: JPortici
author_rank: Super Contributor
timestamp: May 11, 2021, 04:53:52 am
content: Bizarre. I'm experiencing the same issue on firefox

author: rdl
author_rank: Super Contributor
timestamp: May 11, 2021, 07:03:31 am
content: 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:https://www.ti.com/lit/gpn/NE555But clicking it actually goes (or tries to go) to this mess:Code: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-wweWhich probably should work the same ashttps://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.

author: JPortici
author_rank: Super Contributor
timestamp: May 11, 2021, 07:13:16 am
content: update: not working on my mac, working on my pc

author: Ian.M
author_rank: Super Contributor
timestamp: May 11, 2021, 07:30:21 am
content: 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-NE555I'm using Chromium 90.0.4430.72 on Win10 x64, with uBlock Origin 1.35.2Some 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

author: exe
author_rank: Unknown
timestamp: May 11, 2021, 09:08:44 am
content: 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.

author: Ian.M
author_rank: Super Contributor
timestamp: May 11, 2021, 09:48:11 am
content: 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.

author: tooki
author_rank: Super Contributor
timestamp: May 11, 2021, 10:07:38 am
content: The link works fine for me. Probably a CDN issue, like you guys have said.

author: PlainName
author_rank: Super Contributor
timestamp: May 11, 2021, 10:55:49 am
content: 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...

author: Wolfram
author_rank: Frequent Contributor
timestamp: May 11, 2021, 11:07:11 am
content: 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.

author: sandalcandal
author_rank: Unknown
timestamp: May 11, 2021, 12:31:20 pm
content: 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?

author: PlainName
author_rank: Super Contributor
timestamp: May 11, 2021, 01:17:24 pm
content: QuoteQuick response from them to say, paraphrased, some manufacturers don't make their datasheets available.

author: tooki
author_rank: Super Contributor
timestamp: May 11, 2021, 05:14:55 pm
content: Quote from: sandalcandal on May 11, 2021, 12:31:20 pmSomeone from USA reported issues earlier in the thread.Quote from: dunkemhigh on May 11, 2021, 10:55:49 amDon’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 atiny 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 from: dunkemhigh on May 11, 2021, 01:17:24 pmLMAO at that brain-dead response. RS is probably still salty about being dropped.

author: tooki
author_rank: Super Contributor
timestamp: May 11, 2021, 05:17:13 pm
content: 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

author: PlainName
author_rank: Super Contributor
timestamp: May 11, 2021, 05:55:28 pm
content: QuoteAh, 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.

author: rsjsouza
author_rank: Super Contributor
timestamp: May 11, 2021, 06:19:17 pm
content: 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.

author: rdl
author_rank: Super Contributor
timestamp: May 11, 2021, 06:35:18 pm
content: 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.

author: exe
author_rank: Unknown
timestamp: May 11, 2021, 07:51:26 pm
content: May be without cookies CDN thinks you are a bot.

author: amyk
author_rank: Super Contributor
timestamp: May 12, 2021, 12:06:56 am
content: 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 thehttps://www.ti.com/lit/ds/symlink/ne555.pdfdirect 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.

author: rdl
author_rank: Super Contributor
timestamp: May 12, 2021, 12:09:35 am
content: 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.

author: tooki
author_rank: Super Contributor
timestamp: May 12, 2021, 07:42:27 pm
content: So I've run into the problem now, trying to downloadhttps://www.ti.com/lit/ug/scyd013b/scyd013b.pdfon 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 directlySo 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.

author: tooki
author_rank: Super Contributor
timestamp: May 12, 2021, 08:19:24 pm
content: Quote from: dunkemhigh on May 11, 2021, 05:55:28 pmWell, I doubt it was at TI's request: a few TI products on RSdohave TI datasheets and manuals (all dev boards, though, which may not fall under the distributor cull). So I suspect it's RS's decision, and that the rep who replied to you simply gave a boilerplate response without doing any investigation whatsoever.I checked a few other former/unofficial distributors, and one (Distrelec) seems to have no TI datasheets, which I am fairly sure they used to. But two others (Reichelt and Jameco) have datasheets, so it's unclear whether TI is asking RS and others to take down datasheets.If I had to guess, I'd speculate that the former distributors signed something way back when, saying that as distributors, they're entitled to share TI documentation. And once their distribution contract was terminated, the distributors' lawyers said to take down the docs to be on the safe side. But this is pure speculation, I have no evidence either way.

author: PlainName
author_rank: Super Contributor
timestamp: May 12, 2021, 09:17:58 pm
content: Sorry, but...Quote

author: amyk
author_rank: Super Contributor
timestamp: May 13, 2021, 12:32:12 am
content: Quote from: rdl on May 12, 2021, 12:09:35 amIf you do a DNS lookup onwww.ti.comyou'll see that it resolves to a server whose name actually ends in "akamaiedge.net". There's also some other interesting records returned:Code:; <<>> DiG 9 <<>> @localhost [url=http://www.ti.com]www.ti.com A; (1 server found);; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48339;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0;; QUESTION SECTION:;[url=http://www.ti.com]www.ti.com.INA;; ANSWER SECTION:[url=http://www.ti.com]www.ti.com.300INCNAMEchina.[url=http://www.ti.com.edgekey.net]www.ti.com.edgekey.net.china.[url=http://www.ti.com.edgekey.net]www.ti.com.edgekey.net. 21600 INCNAMEchina.[url=http://www.ti.com.edgekey.net.globalredir.akadns.net]www.ti.com.edgekey.net.globalredir.akadns.net.china.[url=http://www.ti.com.edgekey.net.globalredir.akadns.net]www.ti.com.edgekey.net.globalredir.akadns.net. 3600 IN CNAME e2888.dscx.akamaiedge.net.e2888.dscx.akamaiedge.net. 20INA104.65.33.38;; Query time: 331 msec;; SERVER: 127.0.0.1#53(127.0.0.1);; WHEN: Thu May 13 00:31:18 2021;; MSG SIZE rcvd: 184Those of you who are having this problem may be able to troubleshoot what's failing by taking a packet trace.

author: tooki
author_rank: Super Contributor
timestamp: May 13, 2021, 01:18:07 am
content: Quote from: dunkemhigh on May 12, 2021, 09:17:58 pm...and?

author: PlainName
author_rank: Super Contributor
timestamp: May 13, 2021, 11:12:28 am
content: QuoteResolves and pings fine for me. Tracert shows some packet loss when it enters my ISP's network, but only from that hop. The end point is fine.

author: rsjsouza
author_rank: Super Contributor
timestamp: May 13, 2021, 07:58:01 pm
content: Quote from: amyk on May 13, 2021, 12:32:12 amThat is probably the issue and explains why people in different parts of the world see things differently. Akamai is a proxy/cache service that stores data nearer the origin of the request.IME they are not the most stable service in the world...

author: tooki
author_rank: Super Contributor
timestamp: May 14, 2021, 10:24:44 am
content: Quote from: rsjsouza on May 13, 2021, 07:58:01 pmIt’s not a geographical issue, since we have reports of it from various parts of the world, plus my experience of it working on one device and not another, on the same internet connection.

author: station240
author_rank: Unknown
timestamp: May 15, 2021, 06:28:32 pm
content: TI had a crackdown on websites hosting their datasheets last year.Including a site archiving datasheets.https://twitter.com/marcan42/status/1347403996332376065

author: PlainName
author_rank: Super Contributor
timestamp: May 15, 2021, 06:53:44 pm
content: Gosh, wonder why they did that. Bit of a foot-shooter.

author: Vovk_Z
author_rank: Super Contributor
timestamp: May 16, 2021, 07:45:03 pm
content: I just typed "TI 555 timer" in the Chrome, and got full 27 page pdf. Sorry, if this was not helpful.

author: exe
author_rank: Unknown
timestamp: May 17, 2021, 06:25:58 am
content: Ha-ha, now I got troubles with TI datasheets too. The server responds with "HTTP/1.1 304 Not Modified", even when just trying to download directly, without any cookies or whatever. I didn't find a way to download that file (https://www.ti.com/lit/ds/symlink/lm317-n.pdf).Now I also recall that I had this issues recently. I had to reload page several times before I could download it.

author: amyk
author_rank: Super Contributor
timestamp: May 17, 2021, 01:26:51 pm
content: Quote from: exe on May 17, 2021, 06:25:58 amCtrl+F5 or whatever your browser uses to mean "full refresh".

author: exe
author_rank: Unknown
timestamp: May 17, 2021, 02:15:11 pm
content: Quote from: amyk on May 17, 2021, 01:26:51 pmTried that, it didn't help. Not just that, I tried to fetch datasheet with curl, with and without cookiesm anonymous mode, no luck. Like this doesn't work for me: curl -vv 'https://www.ti.com/lit/ds/symlink/lm317-n.pdf'.

author: magic
author_rank: Super Contributor
timestamp: May 17, 2021, 03:26:29 pm
content: Exactly. I clicked a few links here out of curiosity and some return 304 and some return 304 or 200 depending on whether I use a browser or wget.This response is only valid if the client requests a version newer that it already has in its cache using special HTTP syntax. Sending it to normal request is illegal. I suspect some misconfiguration, where responses between their cache servers are leaked to the client in semi-random circumstances.

author: exe
author_rank: Unknown
timestamp: May 17, 2021, 04:38:18 pm
content: Ah, got it. Illegal means the webserver should not send 304 arbitrary, but only when the client provided a special header to check.

author: alexwhittemore
author_rank: Frequent Contributor
timestamp: May 17, 2021, 08:12:53 pm
content: Just to pile on, I've ALSO been having issues with TI datasheets lately, not MERELY that they are less accessible than I'd prefer in terms of direct links from octopart and digikey.* One part, the DS link on TI's product page works consistently from my phone, but not from (any of multiple) desktop browser(s)* Octopart/DK link TO THE PRODUCT PAGE, which you THEN have to click the datasheet link on. Makes part selection surprisingly cumbersome.* Every goddamn link in Altium's content vault/SnapEDA/componnentsearchengine is dead now. Absolutely maddening.I do wish they'd pull their head out of their ass on this one.

author: rsjsouza
author_rank: Super Contributor
timestamp: May 17, 2021, 08:40:29 pm
content: Perhaps ask a question on their e2e site support forum and point to this thread could help solve this? They tend to be pretty responsive there.https://e2e.ti.com/support/site-support-group/site-support/f/site-support-forum