{"id":224893,"date":"2012-08-07T22:00:00","date_gmt":"2012-08-07T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/circuits-rtcc-spi-a-chronometrage-precis\/"},"modified":"2012-08-07T22:00:00","modified_gmt":"2012-08-07T22:00:00","slug":"circuits-rtcc-spi-a-chronometrage-precis","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/circuits-rtcc-spi-a-chronometrage-precis\/","title":{"rendered":"Circuits RTCC SPI \u00e0 chronom\u00e9trage pr\u00e9cis"},"content":{"rendered":"<p class=\"MsoNormal\" style=\"margin:0cm;margin-bottom:.0001pt;line-height:normal\">Gr&acirc;ce &agrave; l&rsquo;int&eacute;gration de 64 octets de SRAM, de 2 Kbits d&rsquo;EEPROM et d&rsquo;un adressage unique (ID) de 128&nbsp;bits qui peut &ecirc;tre command&eacute; vierge ou bien pr&eacute;programm&eacute; avec une adresse MAC, les composants de m&eacute;moire externes &agrave; ces circuits s&rsquo;av&egrave;rent bien souvent inutiles. Les compteurs d&rsquo;&eacute;nergie, les &eacute;quipements industriels, les radios, les GPS et appareils m&eacute;dicaux, qui requi&egrave;rent tous un chronom&eacute;trage pr&eacute;cis sur une large plage de temp&eacute;rature, pourront &eacute;galement tirer parti de leur plage de r&eacute;glage num&eacute;rique tr&egrave;s &eacute;tendue qui peut compenser jusqu&rsquo;&agrave; 22 secondes par jour de d&eacute;rive de fr&eacute;quence du quartz. Ce r&eacute;glage num&eacute;rique permet &agrave; l&rsquo;utilisateur d&rsquo;obtenir une excellente pr&eacute;cision sur une large plage de temp&eacute;rature de fonctionnement. De plus, la pr&eacute;cision du chronom&eacute;trage reste la m&ecirc;me &agrave; un niveau de consommation moindre, car le r&eacute;glage num&eacute;rique est toujours maintenu m&ecirc;me quand le module fonctionne sur une alimentation de secours raccord&eacute;e &agrave; la broche d&rsquo;entr&eacute;e VBAT. En outre, ces composants sont actuellement les seuls du march&eacute; &agrave; offrir un module RTCC aliment&eacute; par batterie avec horodatage des pannes et du r&eacute;tablissement du courant, ainsi que les trois types de m&eacute;moire non volatile&nbsp;EEPROM, SRAM et stockage d&rsquo;adresse unique (ID). La fonction d&rsquo;horodatage des pannes int&eacute;gr&eacute;e enregistre l&rsquo;heure et la dur&eacute;e des pannes de courant, sans aucun circuit suppl&eacute;mentaire.<\/p>\n<p class=\"MsoNormal\" style=\"margin:0cm;margin-bottom:.0001pt;line-height:normal\">Les applications pour lesquelles la long&eacute;vit&eacute; des batteries est primordiale, telles que les applications sans fil, de communication portable, de s&eacute;curit&eacute; et de l&rsquo;industrie automobile, b&eacute;n&eacute;ficient &eacute;galement d&rsquo;un bus SPI 5&nbsp;MHz et d&rsquo;une alarme dot&eacute;e d&rsquo;une pr&eacute;cision &agrave; la milliseconde. Gr&acirc;ce &agrave; la haute pr&eacute;cision de cette alarme, un meilleur degr&eacute; de contr&ocirc;le sur le cycle de service est atteint pour assurer l&rsquo;allongement des modes veille et d&eacute;sactivation du microcontr&ocirc;leur.<\/p>\n<p class=\"MsoNormal\" style=\"margin:0cm;margin-bottom:.0001pt;line-height:normal\">Les six membres de cette famille, r&eacute;f&eacute;renc&eacute;s MCP79510, MCP79511, MCP79512, MCP79520, MCP79521 et MCP79522 sont disponibles en bo&icirc;tiers MSOP et TDFN &agrave; 10 broches. La carte fille associ&eacute;e PICtail Plus, compatible avec les cartes de d&eacute;veloppement propri&eacute;taires Explorer 16 et Explorer PIC18, &nbsp;permet aux d&eacute;veloppeurs de tester ces modules sur leurs applications.<\/p>\n<p class=\"MsoNormal\" style=\"margin:0cm;margin-bottom:.0001pt;line-height:normal\">&nbsp; <\/p>\n<p><a href=\"http:\/\/www.microchip.com\/get\/T6KJ\" target=\"_blank\" title=\"www.microchip.com\/get\/T6KJ\" rel=\"noopener\">www.microchip.com\/get\/T6KJ<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le portefeuille de circuits RTCC (horloge\/calendrier temps r\u00e9el) autonomes de Microchip se compl\u00e8te de la famille MCP795XX SPI \u00e0 10 broches qui reprend de nombreuses caract\u00e9ristiques des versions 14 broches avec de meilleures performances de chronom\u00e9trage. Permettant de r\u00e9duire le nombre total de composants du syst\u00e8me et d\u2019\u00e9liminer les co\u00fbts de programmation d&rsquo;une identification, cette famille est bien adapt\u00e9e au march\u00e9 des appareils de poche, sans fil et des biens grand public.<\/p>\n","protected":false},"author":22,"featured_media":224894,"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-224893","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Circuits RTCC SPI \u00e0 chronom\u00e9trage pr\u00e9cis ...<\/title>\n<meta name=\"description\" content=\"Le portefeuille de circuits RTCC (horloge\/calendrier temps r\u00e9el) autonomes de Microchip se compl\u00e8te de la famille MCP795XX SPI \u00e0 10 broches qui reprend de...\" \/>\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\/224893\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Circuits RTCC SPI \u00e0 chronom\u00e9trage pr\u00e9cis\" \/>\n<meta property=\"og:description\" content=\"Le portefeuille de circuits RTCC (horloge\/calendrier temps r\u00e9el) autonomes de Microchip se compl\u00e8te de la famille MCP795XX SPI \u00e0 10 broches qui reprend de nombreuses caract\u00e9ristiques des versions 14 broches avec de meilleures performances de chronom\u00e9trage. Permettant de r\u00e9duire le nombre total de composants du syst\u00e8me et d\u2019\u00e9liminer les co\u00fbts de programmation d&#039;une identification, cette famille est bien adapt\u00e9e au march\u00e9 des appareils de poche, sans fil et des biens grand public.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/224893\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2012-08-07T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.eenewseurope.com\/wp-content\/uploads\/import\/default\/files\/import\/eci6194_mc1110-mcp795xx-rtcch_lo.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2100\" \/>\n\t<meta property=\"og:image:height\" content=\"1500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta 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