{"id":1706,"date":"2022-09-27T14:45:52","date_gmt":"2022-09-27T14:45:52","guid":{"rendered":"https:\/\/www.jvs-informatica.com\/blog\/?post_type=glosario&#038;p=1706"},"modified":"2022-09-27T14:45:54","modified_gmt":"2022-09-27T14:45:54","slug":"ddr2-sdram","status":"publish","type":"glosario","link":"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/","title":{"rendered":"DDR2 SDRAM"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">El t\u00e9rmino <strong>DDR2 SDRAM<\/strong> se refiere a un tipo de memoria DDR (<em>Double Data Rate<\/em>) de la familia SDRAM (Synchronous Dynamic Random-Access Memory) que empezaron a comercializarse a principios de 1970. La DDR2 SDRAM <strong>es una de memoria RAM que funciona con 4 bits por ciclo<\/strong>, 2 para la ida y 2 para la vuelta de manera que mejora de considerablemente el ancho de banda potencial, pero con la misma potencia que los que utilizaban los DDR SDRAM. \u00a1Lo vemos con m\u00e1s detalle!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 es DDR2 SDRAM y c\u00f3mo funciona?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La memoria DDR2 SDRAM es una evoluci\u00f3n de su modelo anterior DDR SDRAM. Esta ofrece una banda de ancha superior lo que permite aumentar la velocidad de entrega gracias a los 4 bits por ciclo. As\u00ed pues, mientras que la versi\u00f3n m\u00e1s antigua entregaba 400 MHz nominales a 200 MHz reales, una DDR2 SDRAM entrega 800 MHz nominales a 200 MHz reales. En estos dispositivos podemos encontrar un <strong>peque\u00f1o buffer que es el que se encarga de almacenar toda la informaci\u00f3n<\/strong> para luego transmitirla fuera del m\u00f3dulo de la memoria. En el modelo convencional se tomaban los 2 bits para transmitir la informaci\u00f3n en un solo ciclo, mientras que en el DDR2 el buffer almacena 4 bits y luego la env\u00eda redoblando la frecuencia nominal \u2014y sin necesidad de aumentar la frecuencia real de los m\u00f3dulos de memoria\u2014.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La memoria DDR2 SDRAM fue lanzada al mercado por primera vez en el a\u00f1o 2004. La misma funciona a un voltaje de 1.8 voltios (un 28% inferior en comparaci\u00f3n con la DDR convencional). Como dec\u00edamos, con este nuevo modelo se aument\u00f3 la densidad m\u00e1xima hasta los 256 MB (con 2GB por m\u00f3dulo) al igual que la velocidad \u2014alcanza una <strong>velocidad m\u00e1xima de 533 MHz<\/strong>\u2014.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DDR2 SDRAM: capacidad<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El tama\u00f1o m\u00e1ximo de la RAM DDR2 es de 4 GB por cada DIMM (los m\u00f3dulos de la RAM). Por lo tanto, una placa base que posea dos ranuras para una memoria RAM DDR2 podr\u00e1 alcanzar una capacidad m\u00e1xima de 8 GB, aunque lo m\u00e1s habitual es encontrar DDR2 SDRAM 1 GB y la DDR2 SDRAM 4 GB. Por supuesto, si comparamos la SDRAM vs DDR2, el tama\u00f1o m\u00e1ximo que puede tener el modelo convencional (DDR) se reduce a 2 GB \u2014esta \u00faltima memoria opera con m\u00e1s potencia de entre 2.5V y 2.6V\u2014.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La memoria DDR2 SDRAM es una evoluci\u00f3n de su modelo anterior DDR SDRAM. Esta ofrece una banda de ancha superior lo que permite aumentar la velocidad de entrega gracias a los 4 bits por ciclo. \u00a1M\u00e1s informaci\u00f3n!<\/p>\n","protected":false},"featured_media":1708,"template":"","meta":[],"class_list":["post-1706","glosario","type-glosario","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>DDR2 SDRAM - JVS Inform\u00e1tica Blog<\/title>\n<meta name=\"description\" content=\"\u00bfQu\u00e9 es una memoria DDR2 SDRAM? \u27a4 Te explicamos en qu\u00e9 consiste y cu\u00e1les son sus caracter\u00edsticas. \u00a1Clic para m\u00e1s informaci\u00f3n!\" \/>\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.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DDR2 SDRAM - JVS Inform\u00e1tica Blog\" \/>\n<meta property=\"og:description\" content=\"\u00bfQu\u00e9 es una memoria DDR2 SDRAM? \u27a4 Te explicamos en qu\u00e9 consiste y cu\u00e1les son sus caracter\u00edsticas. \u00a1Clic para m\u00e1s informaci\u00f3n!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/\" \/>\n<meta property=\"og:site_name\" content=\"JVS Inform\u00e1tica Blog\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-27T14:45:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.jvs-informatica.com\/blog\/wp-content\/uploads\/2022\/09\/DDR2-SDRAM.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1245\" \/>\n\t<meta property=\"og:image:height\" content=\"652\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/\",\"url\":\"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/\",\"name\":\"DDR2 SDRAM - JVS Inform\u00e1tica Blog\",\"isPartOf\":{\"@id\":\"https:\/\/www.jvs-informatica.com\/blog\/pt\/blog-portugues\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.jvs-informatica.com\/blog\/wp-content\/uploads\/2022\/09\/DDR2-SDRAM.jpg\",\"datePublished\":\"2022-09-27T14:45:52+00:00\",\"dateModified\":\"2022-09-27T14:45:54+00:00\",\"description\":\"\u00bfQu\u00e9 es una memoria DDR2 SDRAM? \u27a4 Te explicamos en qu\u00e9 consiste y cu\u00e1les son sus caracter\u00edsticas. \u00a1Clic para m\u00e1s informaci\u00f3n!\",\"breadcrumb\":{\"@id\":\"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/#primaryimage\",\"url\":\"https:\/\/www.jvs-informatica.com\/blog\/wp-content\/uploads\/2022\/09\/DDR2-SDRAM.jpg\",\"contentUrl\":\"https:\/\/www.jvs-informatica.com\/blog\/wp-content\/uploads\/2022\/09\/DDR2-SDRAM.jpg\",\"width\":1245,\"height\":652},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\/\/www.jvs-informatica.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"DDR2 SDRAM\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.jvs-informatica.com\/blog\/pt\/blog-portugues\/#website\",\"url\":\"https:\/\/www.jvs-informatica.com\/blog\/pt\/blog-portugues\/\",\"name\":\"JVS Inform\u00e1tica Blog\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.jvs-informatica.com\/blog\/pt\/blog-portugues\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"DDR2 SDRAM - JVS Inform\u00e1tica Blog","description":"\u00bfQu\u00e9 es una memoria DDR2 SDRAM? \u27a4 Te explicamos en qu\u00e9 consiste y cu\u00e1les son sus caracter\u00edsticas. \u00a1Clic para m\u00e1s informaci\u00f3n!","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/","og_locale":"es_ES","og_type":"article","og_title":"DDR2 SDRAM - JVS Inform\u00e1tica Blog","og_description":"\u00bfQu\u00e9 es una memoria DDR2 SDRAM? \u27a4 Te explicamos en qu\u00e9 consiste y cu\u00e1les son sus caracter\u00edsticas. \u00a1Clic para m\u00e1s informaci\u00f3n!","og_url":"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/","og_site_name":"JVS Inform\u00e1tica Blog","article_modified_time":"2022-09-27T14:45:54+00:00","og_image":[{"width":1245,"height":652,"url":"https:\/\/www.jvs-informatica.com\/blog\/wp-content\/uploads\/2022\/09\/DDR2-SDRAM.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Tiempo de lectura":"2 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/","url":"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/","name":"DDR2 SDRAM - JVS Inform\u00e1tica Blog","isPartOf":{"@id":"https:\/\/www.jvs-informatica.com\/blog\/pt\/blog-portugues\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/#primaryimage"},"image":{"@id":"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/#primaryimage"},"thumbnailUrl":"https:\/\/www.jvs-informatica.com\/blog\/wp-content\/uploads\/2022\/09\/DDR2-SDRAM.jpg","datePublished":"2022-09-27T14:45:52+00:00","dateModified":"2022-09-27T14:45:54+00:00","description":"\u00bfQu\u00e9 es una memoria DDR2 SDRAM? \u27a4 Te explicamos en qu\u00e9 consiste y cu\u00e1les son sus caracter\u00edsticas. \u00a1Clic para m\u00e1s informaci\u00f3n!","breadcrumb":{"@id":"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/"]}]},{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/#primaryimage","url":"https:\/\/www.jvs-informatica.com\/blog\/wp-content\/uploads\/2022\/09\/DDR2-SDRAM.jpg","contentUrl":"https:\/\/www.jvs-informatica.com\/blog\/wp-content\/uploads\/2022\/09\/DDR2-SDRAM.jpg","width":1245,"height":652},{"@type":"BreadcrumbList","@id":"https:\/\/www.jvs-informatica.com\/blog\/glosario\/ddr2-sdram\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Portada","item":"https:\/\/www.jvs-informatica.com\/blog\/"},{"@type":"ListItem","position":2,"name":"DDR2 SDRAM"}]},{"@type":"WebSite","@id":"https:\/\/www.jvs-informatica.com\/blog\/pt\/blog-portugues\/#website","url":"https:\/\/www.jvs-informatica.com\/blog\/pt\/blog-portugues\/","name":"JVS Inform\u00e1tica Blog","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.jvs-informatica.com\/blog\/pt\/blog-portugues\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es"}]}},"_links":{"self":[{"href":"https:\/\/www.jvs-informatica.com\/blog\/wp-json\/wp\/v2\/glosario\/1706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jvs-informatica.com\/blog\/wp-json\/wp\/v2\/glosario"}],"about":[{"href":"https:\/\/www.jvs-informatica.com\/blog\/wp-json\/wp\/v2\/types\/glosario"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jvs-informatica.com\/blog\/wp-json\/wp\/v2\/media\/1708"}],"wp:attachment":[{"href":"https:\/\/www.jvs-informatica.com\/blog\/wp-json\/wp\/v2\/media?parent=1706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}