{"id":234036,"date":"2015-08-26T22:00:00","date_gmt":"2015-08-26T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/microcontroleurs-a-memoire-flash-etendue-et-options-de-securite\/"},"modified":"2015-08-26T22:00:00","modified_gmt":"2015-08-26T22:00:00","slug":"microcontroleurs-a-memoire-flash-etendue-et-options-de-securite","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/microcontroleurs-a-memoire-flash-etendue-et-options-de-securite\/","title":{"rendered":"Microcontr\u00f4leurs \u00e0 m\u00e9moire Flash \u00e9tendue et options de s\u00e9curit\u00e9"},"content":{"rendered":"<p>La m&eacute;moire Flash &agrave; double partition avec fonction de mise &agrave; jour en op&eacute;ration permet de conserver deux applications logicielles ind&eacute;pendantes et rend possible la programmation simultan&eacute;e de l&rsquo;une des partitions pendant que le code applicatif de la deuxi&egrave;me est ex&eacute;cut&eacute;.<br \/>\nPour prot&eacute;ger les donn&eacute;es embarqu&eacute;es, plusieurs p&eacute;riph&eacute;riques CIP propri&eacute;taires, ind&eacute;pendants du c&oelig;ur et qui fonctionnent sans l&rsquo;aide du CPU, sont int&eacute;gr&eacute;s &agrave; ces PIC. Le moteur de chiffrement mat&eacute;riel enti&egrave;rement &eacute;quip&eacute;, compatible, entre autre, avec les standards de chiffrement AES, DES et 3DES, r&eacute;duit la taille du logiciel, diminue la consommation et autorise des d&eacute;bits de donn&eacute;es plus &eacute;lev&eacute;s. Le g&eacute;n&eacute;rateur RNG (Random Number Generator) est utilis&eacute; pour g&eacute;n&eacute;rer des cl&eacute;s al&eacute;atoires de chiffrement des donn&eacute;es, assurant le d&eacute;cryptage et l&rsquo;authentification, et garantissant un niveau de s&eacute;curit&eacute; &eacute;lev&eacute;.<br \/>\nPour une protection accrue, cette famille offre le choix entre deux options de stockage avec cl&eacute; de chiffrement, la m&eacute;moire OTP pour emp&ecirc;cher l&rsquo;&eacute;crasement des cl&eacute;s, ou la m&eacute;moire Key RAM qui efface automatiquement les cl&eacute;s stock&eacute;es quand l&rsquo;alimentation est coup&eacute;e. Pour que l&rsquo;horloge temps r&eacute;el de l&rsquo;application continue de fonctionner en cas de coupure de l&rsquo;alimentation du circuit primaire, la broche VBAT peut &ecirc;tre utilis&eacute;e pour fournir une alimentation de secours.\n<\/p>\n<hr \/>\n<p>R&eacute;duisant le nombre de composants du syst&egrave;me, le pilote d&rsquo;afficheur LCD &agrave; segments donne la possibilit&eacute; de piloter directement jusqu&rsquo;&agrave; 512 segments pour des &eacute;crans plus flexibles et informatifs int&eacute;grant des ic&ocirc;nes descriptives et le d&eacute;filement de caract&egrave;res.<br \/>\nGr&acirc;ce &agrave; l&rsquo;ensemble de ces fonctionnalit&eacute;s avanc&eacute;es, cette famille se r&eacute;v&egrave;le particuli&egrave;rement bien adapt&eacute;e pour les d&eacute;veloppeurs d&rsquo;applications industrielles, informatiques, m&eacute;dicales\/de fitness et\/ou nomades requ&eacute;rant le transfert et le stockage s&eacute;curis&eacute; des donn&eacute;es, ainsi qu&rsquo;une grande long&eacute;vit&eacute; des piles.<br \/>\nEn outre, elle est compatible avec la suite standard d&rsquo;outils de d&eacute;veloppement comprenant le module plug-in (PIM) PIC24FJ256GB410 pour carte de d&eacute;veloppement Explorer 16. Diff&eacute;rentes variantes sont possibles, avec USB pour l&rsquo;indice GB et sans USB pour l&rsquo;indice GA. <\/p>\n<\/p>\n<p><a href=\"http:\/\/www.microchip.com\/PIC24FJ256GB410-082415a\" target=\"_blank\" title=\"www.microchip.com\/PIC24FJ256GB410-082415a\" rel=\"noopener\">www.microchip.com\/PIC24FJ256GB410-082415a<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Etendant le portefeuille des microcontr\u00f4leurs PIC XLP \u00e0 tr\u00e8s faible consommation de Microchip, la famille des PIC24F GB4 int\u00e8gre un moteur de chiffrement mat\u00e9riel avec stockage de donn\u00e9es s\u00e9curis\u00e9 par m\u00e9moire OTP programmable une fois ou m\u00e9moire Key RAM, jusqu\u2019\u00e0 256 ko de m\u00e9moire Flash et le pilotage direct d\u2019afficheurs LCD \u00e0 segments, le tout dans des bo\u00eetiers de 64, 100 ou 121 broches. <\/p>\n","protected":false},"author":22,"featured_media":234037,"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-234036","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Microcontr\u00f4leurs \u00e0 m\u00e9moire Flash \u00e9tendue et options de s\u00e9c...<\/title>\n<meta name=\"description\" content=\"Etendant le portefeuille des microcontr\u00f4leurs PIC XLP \u00e0 tr\u00e8s faible consommation de Microchip, la famille des PIC24F GB4 int\u00e8gre un moteur de chiffrement...\" \/>\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\/234036\/\" 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