{"id":75691,"date":"2024-01-06T14:00:09","date_gmt":"2024-01-06T13:00:09","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/mini-usb-co-to-jest-i-do-czego-sluzy\/"},"modified":"2026-04-08T11:02:02","modified_gmt":"2026-04-08T09:02:02","slug":"mini-usb-co-je-to-a-k-cemu-se-pouziva","status":"publish","type":"post","link":"https:\/\/botland.cz\/blog\/mini-usb-co-je-to-a-k-cemu-se-pouziva\/","title":{"rendered":"Mini USB – Co je to a k \u010demu se pou\u017e\u00edv\u00e1?"},"content":{"rendered":"\u010cas \u010dten\u00ed:<\/span> 3<\/span> min.<\/span><\/span>\t\t
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Rozhran\u00ed USB se do\u010dkalo \u0159ady r\u016fzn\u00fdch variant konektor\u016f, z nich\u017e ka\u017ed\u00e1 nab\u00edz\u00ed jedine\u010dn\u00e9 v\u00fdhody. V tomto \u010dl\u00e1nku se budeme podrobn\u011b zab\u00fdvat t\u00e9matem konektor\u016f mini USB.<\/em><\/p>\n

Standard USB<\/strong> (Universal Serial Bus) je od sv\u00e9ho uveden\u00ed na trh v 90. letech 20. stolet\u00ed nejpou\u017e\u00edvan\u011bj\u0161\u00edm standardem. pro\u0161el od sv\u00e9ho uveden\u00ed na trh v minulem stolet\u00ed mnoha zm\u011bnami, \u00fapravami a vylep\u0161en\u00edmi. V\u00fdvoj konektor\u016f USB \u0161el ruku v ruce s miniaturizac\u00ed ka\u017edodenn\u00edch za\u0159\u00edzen\u00ed – zejm\u00e9na multimedi\u00e1ln\u00edch p\u0159ehr\u00e1va\u010d\u016f (MP3, MP4), mobiln\u00edch telefon\u016f a smartphon\u016f, ale tak\u00e9 notebook\u016f, bezdr\u00e1tov\u00fdch sluch\u00e1tek a tis\u00edc\u016f dal\u0161\u00edch typ\u016f za\u0159\u00edzen\u00ed, v nich\u017e konstrukt\u00e9\u0159i vyu\u017e\u00edvaj\u00ed USB k p\u0159enosu dat, nap\u00e1jen\u00ed nebo nab\u00edjen\u00ed za\u0159\u00edzen\u00ed. V tomto \u010dl\u00e1nku poskytujeme ucelen\u00fd p\u0159ehled nejd\u016fle\u017eit\u011bj\u0161\u00edch informac\u00ed o standardu mini USB.<\/strong><\/a><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Stru\u010dn\u00fd historick\u00fd kontext<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Historicky nejstar\u0161\u00edmi konektory byly samoz\u0159ejm\u011b USB typu A a B<\/strong><\/a>. P\u016fvodn\u00ed USB C konektory, kter\u00fdmi byly vybaveny p\u0159edev\u0161\u00edm stoln\u00ed po\u010d\u00edta\u010de a notebooky<\/strong>, se (s ur\u010dit\u00fdmi vylep\u0161en\u00edmi) pou\u017e\u00edvaj\u00ed dodnes, i kdy\u017e z v\u00fdkonnostn\u00edch a mechanick\u00fdch d\u016fvod\u016f jsou nyn\u00ed \u010dasto nahrazov\u00e1ny mnohem modern\u011bj\u0161\u00edmi konektory USB C<\/strong><\/a>. Konektory typu B<\/strong> se naopak hojn\u011b pou\u017e\u00edvaly nap\u0159\u00edklad u tisk\u00e1ren a skener\u016f<\/strong>, a\u010dkoli tento typ patice je st\u00e1le nesporn\u00fdm standardem pro v\u011bt\u0161\u00ed kancel\u00e1\u0159sk\u00e9 vybaven\u00ed nebo m\u011b\u0159ic\u00ed p\u0159\u00edstroje<\/strong>.<\/p>\n

Hlavn\u00ed nev\u00fdhodou patic typu A a B<\/strong> byla jejich pom\u011brn\u011b velk\u00e1 velikost, kter\u00e1 br\u00e1nila jejich pou\u017eit\u00ed s kompaktn\u011bj\u0161\u00edmi za\u0159\u00edzen\u00edmi. V\u00fdvoj\u00e1\u0159i standardu USB tak dosp\u011bli k tomu, \u017ee je zapot\u0159eb\u00ed mnohem men\u0161\u00edch z\u00e1str\u010dek a patic – tak vznikl standard USB. mini USB<\/strong><\/a> kter\u00e9, jak u\u017e n\u00e1zev napov\u00edd\u00e1, byl zmen\u0161enou verz\u00ed standardn\u00edch konektor\u016f USB typu A a (a\u010dkoli se in\u017een\u00fdr\u016fm poda\u0159ilo “propa\u0161ovat” n\u011bkter\u00e9 dal\u0161\u00ed funkce, o kter\u00fdch budeme ps\u00e1t pozd\u011bji). Prozat\u00edm si pamatujte, \u017ee konektory mini USB<\/strong> byly zavedeny pro men\u0161\u00ed za\u0159\u00edzen\u00ed, jako jsou fotoapar\u00e1ty, p\u0159ehr\u00e1va\u010de MP3, mobiln\u00ed telefony atd.<\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Mini z\u00e1str\u010dka a z\u00e1suvka USB - tvar, velikost a dostupn\u00e9 verze<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Z\u00e1str\u010dka mini USB<\/strong><\/a> se od dvou nov\u011bj\u0161\u00edch verz\u00ed (micro USB a USB C) li\u0161\u00ed sv\u00fdm osov\u011b symetrick\u00fdm tvarem, kter\u00fd p\u0159ipom\u00edn\u00e1 kombinaci rovnoramenn\u00e9ho lichob\u011b\u017en\u00edku a obd\u00e9ln\u00edku “vyr\u016fstaj\u00edc\u00edho” z krat\u0161\u00ed z\u00e1kladny. Pro mini USB je k dispozici p\u011bt pin\u016f:<\/p>\n

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  1. Pin 1 (VCC):<\/span> Jedn\u00e1 se o nap\u00e1jec\u00ed pin, kter\u00fd poskytuje stejnosm\u011brn\u00e9 nap\u011bt\u00ed +5 V z hostitelsk\u00e9ho za\u0159\u00edzen\u00ed (host) do perifern\u00edho za\u0159\u00edzen\u00ed (device).<\/li>\n
  2. Pin 2 (D-):<\/span> datov\u00e1 linka, sou\u010d\u00e1st diferenci\u00e1ln\u00edho p\u00e1ru pou\u017e\u00edvan\u00e9ho k p\u0159enosu informac\u00ed (Data-).<\/li>\n
  3. Pin 3 (D+):<\/span> druh\u00e1 datov\u00e1 linka diferenci\u00e1ln\u00edho p\u00e1ru (Data+).<\/li>\n
  4. Pin 4 (ID):<\/span> pin pro zji\u0161t\u011bn\u00ed provozn\u00edho re\u017eimu za\u0159\u00edzen\u00ed (identifikace). Jej\u00ed v\u00fdznam bude pops\u00e1n v dal\u0161\u00ed \u010d\u00e1sti \u010dl\u00e1nku.<\/li>\n
  5. Pin 5 (GND)<\/span>: zemn\u00edc\u00ed veden\u00ed, kter\u00e9 spojuje nulov\u00e9 potenci\u00e1ly obou p\u00e1rovac\u00edch za\u0159\u00edzen\u00ed.<\/li>\n<\/ol>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Identifikace za\u0159\u00edzen\u00ed pomoc\u00ed ID pinu<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Jak jsme ji\u017e zm\u00ednili, konektory mini USB<\/strong><\/a> jsou vybaveny 5 piny<\/strong>. \u010cty\u0159i z nich (+5V, D-, D+ a GND) maj\u00ed sv\u00e9 prot\u011bj\u0161ky na pinech konektor\u016f USB typu A a B a jsou tak\u00e9 p\u0159ipojeny k samostatn\u00fdm vl\u00e1kn\u016fm kabelu USB. Pro funkci OTG<\/strong> byl p\u0159id\u00e1n p\u00e1t\u00fd, dodate\u010dn\u00fd pin (ID) – n\u011bkter\u00e1 za\u0159\u00edzen\u00ed (nap\u0159. chytr\u00e9 telefony) toti\u017e mohou fungovat jako master i jako periferie a pro bezpe\u010dn\u00fd provoz bez nutnosti ru\u010dn\u00ed konfigurace re\u017eimu mus\u00ed hardware n\u011bjak\u00fdm zp\u016fsobem rozpoznat, jak\u00e9 za\u0159\u00edzen\u00ed k n\u011bmu bylo p\u0159ipojeno.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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    \n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t
    Kabel miniUSB B - A Goobay - 1,5 m.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    \n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tPOD\u00cdVEJTE SE NA<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    <\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Pokud tedy ID pin<\/strong> je zkratov\u00e1n na zem<\/strong> (uvnit\u0159 mini USB A konektoru), to znamen\u00e1, \u017ee za\u0159\u00edzen\u00ed na t\u00e9to stran\u011b kabelu pracuje jako hostitel<\/strong>, zat\u00edmco pokud je ID linka nep\u0159ipojena<\/strong> (“vis\u00ed ve vzduchu”) – za\u0159\u00edzen\u00ed na stran\u011b takov\u00e9ho konektoru se automaticky p\u0159epne do re\u017eimu device<\/strong>. Zde je t\u0159eba dodat, \u017ee zat\u00edmco z\u00e1str\u010dky a patice mini USB typu B se st\u00e1le pou\u017e\u00edvaj\u00ed, z\u00e1str\u010dky mini USB typu A a “univerz\u00e1ln\u00ed” z\u00e1suvky mini USB AB (kter\u00e9 p\u0159ij\u00edmaj\u00ed oba typy z\u00e1str\u010dek) se p\u0159estaly pou\u017e\u00edvat a jsou ji\u017e prakticky minulost\u00ed, kterou lze nal\u00e9zt v n\u011bkter\u00fdch star\u00fdch za\u0159\u00edzen\u00edch. V d\u016fsledku toho ji\u017e nen\u00ed mo\u017en\u00e1 podpora OTG pomoc\u00ed konektor\u016f mini-USB – tento \u00fakol p\u0159evzal pozd\u011bj\u0161\u00ed v\u00fdvoj konektor\u016f a z\u00e1suvek micro-USB.<\/strong><\/a><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Konec mini USB??<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    A\u010dkoli byly konektory mini-USB<\/strong> na po\u010d\u00e1tku roku 2000 velmi popul\u00e1rn\u00ed, zaveden\u00ed micro USB<\/strong> – s podobnou \u0161\u00ed\u0159kou, ale v\u00fdrazn\u011b men\u0161\u00ed v\u00fd\u0161kou – vedlo k vytla\u010den\u00ed konektor\u016f mini-USB z v\u011bt\u0161iny dnes vyr\u00e1b\u011bn\u00fdch za\u0159\u00edzen\u00ed. Za zm\u00ednku stoj\u00ed tak\u00e9 \u0159ada vylep\u0161en\u00ed, kter\u00e1 byla vyvinuta d\u00edky technologick\u00e9mu pokroku a kter\u00e1 umo\u017enila dos\u00e1hnout v\u00fdrazn\u011b vy\u0161\u0161\u00ed odolnosti konektor\u016f micro USB (ve srovn\u00e1n\u00ed s verz\u00ed mini USB), m\u011b\u0159eno po\u010dtem mo\u017en\u00fdch cykl\u016f p\u0159ipojen\u00ed bez rizika mechanick\u00e9ho opot\u0159eben\u00ed kontakt\u016f.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Stru\u010dn\u00e9 shrnut\u00ed<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Jak je vid\u011bt, zaveden\u00ed konektor\u016f mini-USB<\/strong> p\u0159edstavovalo kl\u00ed\u010dovou etapu ve v\u00fdvoji technologie tohoto velmi obl\u00edben\u00e9ho standardu pro kabelovou komunikaci mezi ka\u017edodenn\u00edmi digit\u00e1ln\u00edmi za\u0159\u00edzen\u00edmi. A\u010dkoli byl v sou\u010dasnosti z velk\u00e9 \u010d\u00e1sti nahrazen nov\u011bj\u0161\u00edmi standardy (micro USB a ned\u00e1vno USB C<\/strong>), jeho konstrukce – zejm\u00e9na pr\u016fkopnick\u00e9 pou\u017eit\u00ed technologie automatick\u00e9ho rozpozn\u00e1v\u00e1n\u00ed re\u017eimu na z\u00e1klad\u011b dodate\u010dn\u00e9ho identifika\u010dn\u00edho pinu – p\u0159ipravila p\u016fdu pro v\u0161estrann\u00e1 za\u0159\u00edzen\u00ed, kter\u00e1 m\u00e1me k dispozici dnes.<\/p>\n

    Dynamick\u00e1 povaha technologick\u00e9ho pokroku a opakuj\u00edc\u00ed se proces inovac\u00ed na z\u00e1klad\u011b p\u0159edchoz\u00edch zku\u0161enost\u00ed jsou v\u0161ak zcela ne\u00faprosn\u00e9 a ponech\u00e1vaj\u00ed na trhu jen mal\u00fd prostor pro \u0159e\u0161en\u00ed, pro n\u011b\u017e byly vyvinuty nov\u011bj\u0161\u00ed a lep\u0161\u00ed n\u00e1hrady. Douf\u00e1me, \u017ee d\u00edky informac\u00edm uveden\u00fdm v tomto \u010dl\u00e1nku v\u00e1s ji\u017e nebudou p\u0159ekvapovat neobvykl\u00e9 konektory USB, kter\u00e9 se vyskytuj\u00ed v n\u011bkter\u00fdch za\u0159\u00edzen\u00edch star\u0161\u00ed generace.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

    Konektory Mini-USB skr\u00fdvaj\u00ed mnoh\u00e1 tajemstv\u00ed a historick\u00e9 pozad\u00ed – zjist\u011bte, jak\u00e1 byla zaj\u00edmav\u00e1 historie v\u00fdvoje nejobl\u00edben\u011bj\u0161\u00edho s\u00e9riov\u00e9ho komunika\u010dn\u00edho rozhran\u00ed!<\/p>\n","protected":false},"author":22,"featured_media":74448,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,179],"tags":[],"class_list":["post-75691","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika","category-kompendium"],"acf":[],"yoast_head":"\nMini USB - Co je to a k \u010demu se pou\u017e\u00edv\u00e1? - Botland<\/title>\n<meta name=\"description\" content=\"Mini-USB konektory skr\u00fdvaj\u00ed mnoh\u00e1 tajemstv\u00ed a historick\u00e9 souvislosti - p\u0159e\u010dt\u011bte si zaj\u00edmavou historii v\u00fdvoje nejobl\u00edben\u011bj\u0161\u00edho s\u00e9riov\u00e9ho komunika\u010dn\u00edho rozhran\u00ed!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/botland.cz\/blog\/mini-usb-co-je-to-a-k-cemu-se-pouziva\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mini USB - Co je to a k \u010demu se pou\u017e\u00edv\u00e1? 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