{"id":224741,"date":"2012-07-11T22:00:00","date_gmt":"2012-07-11T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/circuit-dextension-de-s-miniature-avec-protection-esd\/"},"modified":"2012-07-11T22:00:00","modified_gmt":"2012-07-11T22:00:00","slug":"circuit-dextension-de-s-miniature-avec-protection-esd","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/circuit-dextension-de-s-miniature-avec-protection-esd\/","title":{"rendered":"Circuit d&rsquo;extension d&rsquo;E\/S miniature avec protection ESD"},"content":{"rendered":"<p style=\"line-height:normal\" class=\"MsoNormal\">Ce circuit relie jusqu&rsquo;&agrave; 20 E\/S universelles (GPIO), 96 liaisons clavier et trois canaux PWM &agrave; un syst&egrave;me h&ocirc;te au travers d&rsquo;une interface I2C sur 2 fils avec une connexion mat&eacute;rielle IRQ. L&rsquo;ajout du dispositif en tant qu&rsquo;esclave I2C diminue l&rsquo;effort n&eacute;cessaire pour int&eacute;grer ces interconnexions et permet aux ing&eacute;nieurs de d&eacute;veloppement de disposer de fonctions suppl&eacute;mentaires sans sp&eacute;cifier un microcontr&ocirc;leur avec un plus grand nombre de broches d&rsquo;E\/S, plus co&ucirc;teux. Son utilisation pour la connexion d&rsquo;E\/S hors carte peut contribuer &agrave; simplifier le c&acirc;blage, &agrave; r&eacute;duire les co&ucirc;ts et le volume d&rsquo;une application, &agrave; am&eacute;liorer la fiabilit&eacute; et &agrave; diminuer les interf&eacute;rences &eacute;lectromagn&eacute;tiques.<br \/>\nEncapsul&eacute; dans un bo&icirc;tier puce de 2,5 x 2 x 5 mm, ce circuit occupe un espace r&eacute;duit sur la carte &eacute;lectronique. Il apporte aussi une solution de protection int&eacute;gr&eacute;e contre les d&eacute;charges &eacute;lectrostatiques (ESD) et les interf&eacute;rences &eacute;lectromagn&eacute;tiques (EMI), avec une protection ESD jusqu&rsquo;&agrave; 8 kV de d&eacute;charge au contact (15kV de d&eacute;charge dans l&rsquo;air) r&eacute;pondant au niveau 4 de l&rsquo;IEC 61000-4-2 et d&eacute;passant les sp&eacute;cifications JEDEC JESD22. L&rsquo;att&eacute;nuation sup&eacute;rieure &agrave; -3 dBm &agrave; 100 MHz &eacute;vite que les EMI &eacute;mises n&rsquo;interf&egrave;rent avec des composants sensibles mont&eacute;s &agrave; proximit&eacute;.<br \/>\nSes connexions clavier permettent de contr&ocirc;ler une matrice de clavier de 8 x 12 touches au maximum. Les trois canaux PWM peuvent servir &agrave; att&eacute;nuer le r&eacute;tro&eacute;clairage &agrave; DEL ou &agrave; simplement contr&ocirc;ler le moteur du mode vibreur des t&eacute;l&eacute;phones portables. Ils sont capables d&rsquo;op&eacute;rer en autonome sans interaction de l&rsquo;unit&eacute; centrale principale, ce qui peut contribuer &agrave; r&eacute;duire le nombre de cycles n&eacute;cessaires et aussi simplifier la gestion de la consommation en autorisant un recours plus intense au mode veille. Enfin, les 20 canaux GPIO peuvent servir pour un grand nombre de fonctions comme, par exemple, des signaux &quot;reset&quot; ou &quot;enable&quot;. Le syst&egrave;me h&ocirc;te configure facilement ce composant via l&rsquo;interface I2C.<\/p>\n<p><a href=\"http:\/\/www.toshiba-components.com\" target=\"_blank\" title=\"www.toshiba-components.com\" rel=\"noopener\">www.toshiba-components.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Toshiba Electronics Europe ajoute \u00e0 sa famille de circuits d&rsquo;extension d&rsquo;E\/S compacts et de faible consommation, le circuit TC35896WBG int\u00e9grant des protections ESD et EMI qui va simplifier la mise \u00e0 jour des conceptions \u00e0 contraintes de ressources ou l&rsquo;ajout d&rsquo;E\/S sur carte.<\/p>\n","protected":false},"author":22,"featured_media":224742,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-224741","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Circuit d&#039;extension d&#039;E\/S miniature avec protection ESD ...<\/title>\n<meta name=\"description\" content=\"Toshiba Electronics Europe ajoute \u00e0 sa famille de circuits d&#039;extension d&#039;E\/S compacts et de faible consommation, le circuit TC35896WBG int\u00e9grant des...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/224741\/\" \/>\n<meta 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