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C.<p>Component datasheet: "The &lt;model number&gt; is specially designed for general-purpose applications."</p><p><a href="https://mindly.social/tags/wat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>wat</span></a> <a href="https://mindly.social/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>electronics</span></a> <a href="https://mindly.social/tags/datasheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>datasheet</span></a> <a href="https://mindly.social/tags/InigoMontoya" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>InigoMontoya</span></a></p>
Mike Coats 🏴󠁧󠁢󠁳󠁣󠁴󠁿🇪🇺🌍♻️<p>My latest blog post: Back 2 Basics - NMOS Switch</p><p><a href="https://mikecoats.com/back-2-basics-nmos-switch/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">mikecoats.com/back-2-basics-nm</span><span class="invisible">os-switch/</span></a></p><p>The latest in my 'back to basics' series. Toggle high-ish voltages and currents from a microcontroller using an N-channel enhancement mode Field-Effect Transistor, also known as an NMOS Switch.</p><p><a href="https://mikecoats.social/tags/dataSheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>dataSheet</span></a> <a href="https://mikecoats.social/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>electronics</span></a> <a href="https://mikecoats.social/tags/hardware" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hardware</span></a></p>
JennyFluff :heart_trans: 🔜 WHY<p>anyone got a <a href="https://chitter.xyz/tags/datasheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>datasheet</span></a> for a NCL058 3 phase motor controller by any chance? <a href="https://chitter.xyz/tags/retroComputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>retroComputing</span></a></p>
Kevin Karhan :verified:<p><span class="h-card" translate="no"><a href="https://fedi.sillykittens.net/@k4m1" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>k4m1</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.social/@stman" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>stman</span></a></span> yeah, according to <a href="http://realtek.info/pdf/rtl8139cp.pdf" rel="nofollow noopener" target="_blank">the</a> <a href="https://infosec.space/tags/RTL8139" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RTL8139</span></a> <a href="https://infosec.space/tags/datasheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>datasheet</span></a> this is basically a very cheap 10/100M NIC designed <a href="https://infosec.space/tags/embedded" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>embedded</span></a> systems and low-end/low-cost desktops, and for a device designed and sold in 2006 it made sense, given back then <a href="https://infosec.space/tags/Gigabit" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Gigabit</span></a>-<a href="https://infosec.space/tags/Ethernet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Ethernet</span></a> and Cat.5 cabling was considered high-end.</p><ul><li>And unlike contemporary / successor chips by <a href="https://infosec.space/tags/Intel" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Intel</span></a> like the famous <a href="https://infosec.space/tags/i210" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>i210</span></a> (which is still offered as <a href="https://infosec.space/tags/i219" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>i219</span></a> but mostly succeeded by the <a href="https://infosec.space/tags/i225" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>i225</span></a> as a 2,5GBase-T version) is way cheaper, which pre-<a href="https://infosec.space/tags/RoHS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RoHS</span></a> - NICs being sold for like € 10 <em>retail &amp; brand-new</em>....</li></ul><p>The <a href="https://wiki.osdev.org/RTL8139" rel="nofollow noopener" target="_blank">few issues known</a> only affect like <a href="https://infosec.space/tags/Virtualization" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Virtualization</span></a> setups, a market this thing was never designed for (most likely also never tested against).</p><ul><li>I'd not he surprised if a lot of cheap <a href="https://infosec.space/tags/ThinClients" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ThinClients</span></a> and other systems used these NICs because of the simplicity of integration, being a cheap 3,3V single-chip (+auxilliary electronics) solution and propably costling less than 10¢ on a reel of 10.000.</li></ul><p>It's the reason why to this day we see <a href="https://infosec.space/tags/Realtek" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Realtek</span></a> NICs being shipped instead of fanning-out &amp; enabling <a href="https://infosec.space/tags/SoC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SoC</span></a>-integrated NICs with a <a href="https://infosec.space/tags/MAC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MAC</span></a> &amp; <a href="https://infosec.space/tags/PHY" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PHY</span></a> instead: Because the auxilliary parts for those are more expensive than just getting a PCI(e lane) somewhere and plonking it down.</p><ul><li>Maybe there have even been some really cheap, low-end <a href="https://infosec.space/tags/Routers" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Routers</span></a> / <a href="https://infosec.space/tags/Firewalls" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Firewalls</span></a> aiming at <a href="https://infosec.space/tags/SoHo" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SoHo</span></a> customers back in those days, cuz back then 16MBit/s <a href="https://infosec.space/tags/ADSL2" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ADSL2</span></a> was considered fast, and Realtek's NICs up until recently only delivered like 60-75% of the max. speed advertised, so by the time someone would notice, that gearvwould've been EoL'd anyway and those who did notice right-away never were the target audience to begin with.</li></ul><p>Most modern NICs are more complex and demand more configuration / driver support...</p>
mmu_man<p>Proof of concept <a href="https://m.g3l.org/tags/KiCad" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>KiCad</span></a> addon: <a href="https://m.g3l.org/tags/Datasheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Datasheet</span></a> Application Notes.</p><p>You edit the form with the component values, it calculates the parameters from them and injects them in the schematics that is copied to the clipboard.</p><p><a href="https://github.com/mmuman/kicad-application-notes" rel="nofollow noopener" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/mmuman/kicad-applic</span><span class="invisible">ation-notes</span></a></p><p>(oh, and it's using KiCad's new plugin API so requires 9.0 with API enabled)</p><p><a href="https://m.g3l.org/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>electronics</span></a> <a href="https://m.g3l.org/tags/Python" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Python</span></a></p>
Kevin Karhan :verified:<p><span class="h-card" translate="no"><a href="https://kitty.haus/users/lamp" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>lamp</span></a></span> Well, <a href="https://infosec.space/tags/Apple" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Apple</span></a> really are assholes in terms of <a href="https://infosec.space/tags/longevity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>longevity</span></a> because they literally will run the silicon to the <a href="https://infosec.space/tags/datasheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>datasheet</span></a>-spec'd maximums even if that hurts the lifetime of the hardware...</p><p>Add to that the fact that they don't know how to design shit, and you <a href="https://www.youtube.com/watch?v=AUaJ8pDlxi8" rel="nofollow noopener" target="_blank">get these results</a>...</p>
C.<p>It's quite a versatile component.</p><p><a href="https://mindly.social/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>electronics</span></a> <a href="https://mindly.social/tags/component" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>component</span></a> <a href="https://mindly.social/tags/transistor" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>transistor</span></a> <a href="https://mindly.social/tags/phototransistor" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>phototransistor</span></a> <a href="https://mindly.social/tags/datasheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>datasheet</span></a></p>
mmu_man<p>Someone I know is looking for the <a href="https://m.g3l.org/tags/Sony" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Sony</span></a> CX1063AP <a href="https://m.g3l.org/tags/datasheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>datasheet</span></a>… Anyone?</p>
C.<p>So I dug around until I found a <a href="https://mindly.social/tags/current" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>current</span></a> part that exceeds all the <a href="https://mindly.social/tags/specs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>specs</span></a> of the old one. Of course it's a different size, and a completely <a href="https://mindly.social/tags/incompatible" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>incompatible</span></a> <a href="https://mindly.social/tags/pinout" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>pinout</span></a>, so I'm going to have to <a href="https://mindly.social/tags/bodge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>bodge</span></a> it, but I half-expected that anyway.</p><p>Just getting a <a href="https://mindly.social/tags/datasheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>datasheet</span></a> for the old part, to figure out what specs it had to have, was surprisingly <a href="https://mindly.social/tags/difficult" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>difficult</span></a>. What is it with some companies thinking the specs for the product they want you to buy are Top Secret?</p><p>8/x</p><p><a href="https://mindly.social/tags/classified" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>classified</span></a></p>
Mike Coats 🏴󠁧󠁢󠁳󠁣󠁴󠁿🇪🇺🌍♻️<p>My latest blog post: Bringing a VanMoof X3 or S3 Back to Life – Part 1 – Smart Cartridge</p><p>...or, reverse engineering an e-bike that is much too clever, proprietary, and integrated for its own good!</p><p><a href="https://mikecoats.com/vanmoof-back-to-life-part-1/" rel="nofollow noopener" target="_blank"><span class="invisible">https://</span><span class="ellipsis">mikecoats.com/vanmoof-back-to-</span><span class="invisible">life-part-1/</span></a></p><p><a href="https://mikecoats.social/tags/battery" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>battery</span></a> <a href="https://mikecoats.social/tags/cell" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cell</span></a> <a href="https://mikecoats.social/tags/charge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>charge</span></a> <a href="https://mikecoats.social/tags/datasheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>datasheet</span></a> <a href="https://mikecoats.social/tags/ebike" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ebike</span></a> <a href="https://mikecoats.social/tags/hardware" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hardware</span></a> <a href="https://mikecoats.social/tags/lipo" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>lipo</span></a> <a href="https://mikecoats.social/tags/lithium" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>lithium</span></a> <a href="https://mikecoats.social/tags/power" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>power</span></a> <a href="https://mikecoats.social/tags/vanmoof" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>vanmoof</span></a></p>
C.<p>I think perhaps that the manufacturer's "typical application" circuit is missing a few things...</p><p><a href="https://mindly.social/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>electronics</span></a> <a href="https://mindly.social/tags/schematic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>schematic</span></a> <a href="https://mindly.social/tags/datasheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>datasheet</span></a> <a href="https://mindly.social/tags/regulator" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>regulator</span></a> <a href="https://mindly.social/tags/oops" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>oops</span></a> <a href="https://mindly.social/tags/OneJob" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OneJob</span></a></p>
Retrograde<p>Go home, Rockwell, you're drunk. 🤷‍♂️​</p><p><a href="https://oldbytes.space/tags/rockwell" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>rockwell</span></a> <a href="https://oldbytes.space/tags/acia" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>acia</span></a> <a href="https://oldbytes.space/tags/datasheet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>datasheet</span></a> <a href="https://oldbytes.space/tags/cognitive_dissonance" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cognitive_dissonance</span></a> <a href="https://oldbytes.space/tags/homebrewcomputer" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>homebrewcomputer</span></a></p>