STM32F730 and STM32F750 Restricted Availability - Page 1
Forum section: electronics / general

author: TimCambridge
author_rank: Regular Contributor
timestamp: October 26, 2018, 01:40:38 am
content: Digikey and Mouser have these parts as off-limits for the UK. Is it the same for all non-US markets?

author: SiliconWizard
author_rank: Super Contributor
timestamp: October 26, 2018, 02:11:45 am
content: Isn't that ironic considering that ST is an european company?

author: TimCambridge
author_rank: Regular Contributor
timestamp: October 26, 2018, 02:28:01 am
content: Quote from: blueskull on October 26, 2018, 01:50:52 amThese are splendidly inexpensive, and I rather like the idea of an ear-controlled chipWhat is the procedure? Can I just order from my Digikey.co.uk account and they will hit me with a form? Or do I need to create an account with Digikey.com? Or something else...

author: krho
author_rank: Regular Contributor
timestamp: October 26, 2018, 04:02:14 am
content: Ah the parts with so small flash that you can barely fit a bootloader in. For everything else you have to use the QSPI flash... Which wouldnt be so bad as it's cheap, the problem is that the content of it cannot be encrypted.

author: donotdespisethesnake
author_rank: Super Contributor
timestamp: October 26, 2018, 04:23:56 am
content: Quote from: SiliconWizard on October 26, 2018, 02:11:45 amMore like moronic, considering that the regulations are pointless.I'm not sure that ordering from digikey.com will work, you could try it. Otherwise you will need to find non-US stock, Avnet Europe perhaps.

author: ajb
author_rank: Super Contributor
timestamp: October 26, 2018, 06:00:05 am
content: The US is weird about crypto, hence the restriction. I think for most of their line ST has parts that are identical except without the crypto if you don't actually need the hardware support and the export restrictions present an issue for you. The ECCN is probably 5A002.a.1.a (at least that's what the last batch of STM32F777s I bought was), which is subject to National Security, Anti-Terror, and Encryption Item control categories. The encryption controls are especially weird, because at some point the bureaucrats realized that a total ban on exporting devices incorporating encryption was ridiculous, but rather than doing something sensible like giving up, they carved out certain exemptions that just made everything more complicated.You might be able to buy the parts after signing something that says that you won't be re-exporting the devices somewhere else or using them for a prohibited purpose, or they might just refuse to sell them to you. Export compliance is the responsibility of the exporter, so you can simply try to buy them and wait for them to either send you whatever forms they need or cancel your order.

author: SiliconWizard
author_rank: Super Contributor
timestamp: October 26, 2018, 04:46:21 pm
content: Quote from: donotdespisethesnake on October 26, 2018, 04:23:56 amYou can also buy direct from ST in theory.I checked that. Unfortunately, whereas the headquarters of ST are in Europe, most ST parts seem to be shipped from the US, even when you buy direct from them from an european country.So you're still stuck with the US requirements.

author: ali_asadzadeh
author_rank: Super Contributor
timestamp: October 27, 2018, 06:42:28 am
content: There is always the option to buy them from china directly!https://detail.tmall.com/item.htm?id=577456710122&spm=a230r.7195193.1997079397.7.43df4f330p5p9f&abbucket=6

author: TimCambridge
author_rank: Regular Contributor
timestamp: October 27, 2018, 11:11:52 am
content: Quote from: ali_asadzadeh on October 27, 2018, 06:42:28 amThat's fun. How does that work for tmall.com? Do they buy from ST in China and resell? Or could they be fakes? Or surplus parts from a Chinese disti?Would buying from tmall.com (via purchasing agent?) be a risky purchase?

author: ali_asadzadeh
author_rank: Super Contributor
timestamp: October 27, 2018, 01:00:13 pm
content: Even crossing the street is risky!you can find many things in china! Including these babies

author: dmendesf
author_rank: Frequent Contributor
timestamp: November 06, 2018, 04:46:24 pm
content: Most strage to me is that some packages are "more dangerous" than others... this TQFP version shows to me as "AR", meaning mouser won´t sell it to me (in Brazil):https://br.mouser.com/ProductDetail/STMicroelectronics/STM32H750VBT6?qs=sGAEpiMZZMuoKKEcg8mMKJ29ob8kKavQd%252bh3BxFvNFEWAVeGvsygkA%3d%3dThis BGA version shows as "EAR", meaning that after some paperwork I can buy it:https://br.mouser.com/ProductDetail/STMicroelectronics/STM32H750XBH6?qs=sGAEpiMZZMuoKKEcg8mMKJ29ob8kKavQYVCPAiVmYEnQrk05khYChA%3d%3dDoes this means that terrorists can´t solder BGAs?

author: mark03
author_rank: Frequent Contributor
timestamp: November 06, 2018, 05:32:59 pm
content: Quote from: dmendesf on November 06, 2018, 04:46:24 pmThank you. This made my day!As long as we keep pointing out that stupid and ridiculous things are, in fact, stupid and ridiculous, there is hope for the world. I get scared when people stop pointing out such things because, "that's just the way it is"...

author: SiliconWizard
author_rank: Super Contributor
timestamp: November 06, 2018, 06:51:58 pm
content: Quote from: dmendesf on November 06, 2018, 04:46:24 pmI smell technocrat bullshit.

author: lukier
author_rank: Unknown
timestamp: November 06, 2018, 07:58:19 pm
content: Why only these parts are restricted availability? On the first look the CRYPTO peripheral looks the same as on the older STM32s, even not much older such as STM32H743 for example.

author: dmendesf
author_rank: Frequent Contributor
timestamp: November 07, 2018, 04:41:56 am
content: stm32h753 has exactly the same criprography and no restrictions. Maybe the restrictions Will later be lifted for h750?

author: ajb
author_rank: Super Contributor
timestamp: November 07, 2018, 04:01:55 pm
content: If anything this is just a difference in how Mouser has classified the parts. If you actually order the parts you'll see the same ECCN on the invoice, and that means they're subject to the same export controls. Most likely Mouser has added a flag to their product database that shows the EAR notification, and they simply haven't gotten it added to all of the applicable parts yet.