{"id":95,"date":"2025-11-10T17:43:34","date_gmt":"2025-11-10T09:43:34","guid":{"rendered":"https:\/\/www.lxbchip.com\/?post_type=product&#038;p=95"},"modified":"2026-01-29T18:51:45","modified_gmt":"2026-01-29T10:51:45","slug":"xc4vlx25-11ffg668i","status":"publish","type":"product","link":"https:\/\/www.lxbchip.com\/ar\/products\/xc4vlx25-11ffg668i\/","title":{"rendered":"xc4vlx25-11ffg668i"},"content":{"rendered":"<table id=\"table_1\" class=\"scroll display nowrap data-t data-t wpDataTable wpDataTableID-8 dataTable\" data-described-by=\"table_1_desc\" data-wpdatatable_id=\"8\" aria-describedby=\"table_1_info\">\n<thead>\n<tr>\n<th class=\"wdtheader sort expand column-modelpn sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" data-class=\"expand\" aria-controls=\"table_1\" aria-label=\" \u0627\u0644\u0637\u0631\u0627\u0632 P\/N\u063a\u064a\u0631 \u0645\u062d\u062f\u062f\">\u0627\u0644\u0637\u0631\u0627\u0632 P\/N<\/th>\n<th class=\"wdtheader sort column-series sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \u0627\u0644\u0633\u0644\u0633\u0644\u0629\u0645\u062d\u062f\u062f\">\u0627\u0644\u0633\u0644\u0633\u0644\u0629<\/th>\n<th class=\"wdtheader sort numdata float column-numberoflabsclbs sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \u0639\u062f\u062f \u0648\u062d\u062f\u0627\u062a LABs\/CLB\u0645\u062d\u062f\u062f\u0629\">\u0639\u062f\u062f \u0627\u0644\u0645\u0639\u0627\u0645\u0644\/\u0627\u0644\u0645\u062e\u062a\u0628\u0631\u0627\u062a<\/th>\n<th class=\"wdtheader sort numdata float column-speedgrade sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \u062f\u0631\u062c\u0629 \u0627\u0644\u0633\u0631\u0639\u0629\u0645\u062d\u062f\u062f\u0629\">\u062f\u0631\u062c\u0629 \u0627\u0644\u0633\u0631\u0639\u0629<\/th>\n<th class=\"wdtheader sort column-numberoflogicelementscells sorting sorting_asc\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \u0639\u062f\u062f \u0627\u0644\u0639\u0646\u0627\u0635\u0631 \u0627\u0644\u0645\u0646\u0637\u0642\u064a\u0629\/\u0627\u0644\u062e\u0644\u0627\u064a\u0627\u0627\u0644\u0645\u062d\u062f\u062f\u0629\" aria-sort=\"ascending\">\u0639\u062f\u062f \u0627\u0644\u0639\u0646\u0627\u0635\u0631\/\u0627\u0644\u062e\u0644\u0627\u064a\u0627 \u0627\u0644\u0645\u0646\u0637\u0642\u064a\u0629<\/th>\n<th class=\"wdtheader sort column-totalrambits sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \u0625\u062c\u0645\u0627\u0644\u064a \u0630\u0627\u0643\u0631\u0629 \u0627\u0644\u0648\u0635\u0648\u0644 \u0627\u0644\u0639\u0634\u0648\u0627\u0626\u064a (RAM)\">\u0625\u062c\u0645\u0627\u0644\u064a \u0628\u062a\u0627\u062a \u0630\u0627\u0643\u0631\u0629 \u0627\u0644\u0648\u0635\u0648\u0644 \u0627\u0644\u0639\u0634\u0648\u0627\u0626\u064a (RAM)<\/th>\n<th class=\"wdtheader sort numdata integer column-numberofio sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \u0639\u062f\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644\/\u0627\u0644\u0625\u062e\u0631\u0627\u062c \u063a\u064a\u0631 \u0645\u062d\u062f\u062f\">\u0639\u062f\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644\/\u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/th>\n<th class=\"wdtheader sort column-voltagesupply sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \u0627\u0644\u0641\u0648\u0644\u062a\u064a\u0629 - \u0627\u0644\u0625\u0645\u062f\u0627\u062f - \u063a\u064a\u0631 \u0645\u062d\u062f\u062f\">\u0627\u0644\u062c\u0647\u062f - \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/th>\n<th class=\"wdtheader sort column-mountingtype sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \u0646\u0648\u0639 \u0627\u0644\u062a\u0631\u0643\u064a\u0628\u063a\u064a\u0631 \u0645\u062d\u062f\u062f\">\u0646\u0648\u0639 \u0627\u0644\u062a\u0631\u0643\u064a\u0628<\/th>\n<th class=\"wdtheader sort column-operatingtemperature sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644\u063a\u064a\u0631 \u0645\u062d\u062f\u062f\u0629\">\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/th>\n<th class=\"wdtheader sort column-packagecase sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \u0627\u0644\u062d\u0632\u0645\u0629\/\u0627\u0644\u062d\u0627\u0644\u0629\u0645\u062d\u062f\u062f\u0629\">\u0627\u0644\u0639\u0628\u0648\u0629 \/ \u0627\u0644\u0639\u0644\u0628\u0629<\/th>\n<th class=\"wdtheader sort column-supplierdevicepackage sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \u062d\u0632\u0645\u0629 \u0627\u0644\u062c\u0647\u0627\u0632 \u0627\u0644\u0645\u0648\u0631\u062f\u062d\u0632\u0645\u0629 \u062c\u0647\u0627\u0632 \u0627\u0644\u0645\u0648\u0631\u062f\u0645\u062d\u062f\u062f\">\u062d\u0632\u0645\u0629 \u062c\u0647\u0627\u0632 \u0627\u0644\u0645\u0648\u0631\u062f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"odd\">\n<td class=\"expand column-modelpn\">xc4vlx25-11ffg668i<\/td>\n<td class=\"column-series\">Virtex-4 SX<\/td>\n<td class=\"numdata float column-numberoflabsclbs\">2.688,00<\/td>\n<td class=\"numdata float column-speedgrade\">0,00<\/td>\n<td class=\"column-numberoflogicelementscells sorting_1\">24192 \u0639\u0646\u0627\u0635\u0631 \u0627\u0644\u0645\u0646\u0637\u0642<\/td>\n<td class=\"column-totalrambits\">1,327,104 \u0628\u062a<\/td>\n<td class=\"numdata integer column-numberofio\">448<\/td>\n<td class=\"column-voltagesupply\">1.14 \u0641\u0648\u0644\u062a ~ 1.26 \u0641\u0648\u0644\u062a<\/td>\n<td class=\"column-mountingtype\">\u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0639\u0644\u0649 \u0627\u0644\u0633\u0637\u062d<\/td>\n<td class=\"column-operatingtemperature\">\u062a\u062c\u0627\u0631\u064a (0 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +85 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629)<\/td>\n<td class=\"column-packagecase\">668-BBGA, FCBGA, 668-BBGA, FCBGA<\/td>\n<td class=\"column-supplierdevicepackage\">668-FCBGA (27\u00d727)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p data-path-to-node=\"3\"><span style=\"color: #003366;\"><strong>XC4VLX25-11FFG668I: Virtex-4 LX for Industrial High-Performance Logic<\/strong><\/span><\/p>\n<p data-path-to-node=\"4\">\u0625\u0646 <b data-path-to-node=\"4\" data-index-in-node=\"4\">xc4vlx25-11ffg668i<\/b> is a member of the Xilinx Virtex-4 LX family, optimized specifically for high-performance logic applications. While the &#8220;SX&#8221; series targets DSP and the &#8220;FX&#8221; focuses on embedded processors, the <b data-path-to-node=\"4\" data-index-in-node=\"216\">\u0633\u0644\u0633\u0644\u0629 LX<\/b> is the go-to for high-density logic, timing-critical interfacing, and general-purpose FPGA tasks.<\/p>\n<p data-path-to-node=\"5\">This specific variant features the <b data-path-to-node=\"5\" data-index-in-node=\"35\">-11 speed grade<\/b> \u0648 <b data-path-to-node=\"5\" data-index-in-node=\"55\">Industrial temperature rating<\/b>, making it suitable for environments where thermal stability and timing closure are more demanding than standard commercial applications.<\/p>\n<p data-path-to-node=\"6\"><span style=\"color: #003366;\"><strong>Core Technical Specifications<\/strong><\/span><\/p>\n<ul data-path-to-node=\"7\">\n<li>\n<p data-path-to-node=\"7,0,0\"><b data-path-to-node=\"7,0,0\" data-index-in-node=\"0\">\u0627\u0644\u062e\u0644\u0627\u064a\u0627 \u0627\u0644\u0645\u0646\u0637\u0642\u064a\u0629:<\/b> 24,192<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,1,0\"><b data-path-to-node=\"7,1,0\" data-index-in-node=\"0\">CLB Array (Rows x Cols):<\/b> 48 x 72<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,2,0\"><b data-path-to-node=\"7,2,0\" data-index-in-node=\"0\">Total Block RAM:<\/b> 1,296 Kb<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,3,0\"><b data-path-to-node=\"7,3,0\" data-index-in-node=\"0\">DSP48 Slices:<\/b> 48<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,4,0\"><b data-path-to-node=\"7,4,0\" data-index-in-node=\"0\">User I\/O:<\/b> 448 (Max)<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,5,0\"><b data-path-to-node=\"7,5,0\" data-index-in-node=\"0\">\u062f\u0631\u062c\u0629 \u0627\u0644\u0633\u0631\u0639\u0629:<\/b> -11 (Mid-to-high performance tier for Virtex-4)<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,6,0\"><b data-path-to-node=\"7,6,0\" data-index-in-node=\"0\">\u0646\u0637\u0627\u0642 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629:<\/b> Industrial (<span class=\"math-inline\" data-math=\"T_{j} = -40\u00b0C\" data-index-in-node=\"31\">$T_{j} = -40\u00b0C$<\/span> to <span class=\"math-inline\" data-math=\"100\u00b0C\" data-index-in-node=\"48\">$100\u00b0C$<\/span>)<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,7,0\"><b data-path-to-node=\"7,7,0\" data-index-in-node=\"0\">\u0627\u0644\u062d\u0632\u0645\u0629:<\/b> FFG668 (Fine-pitch Flip-Chip BGA, Lead-Free\/RoHS)<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"8\"><strong><span style=\"color: #003366;\">Hardware Design &amp; Implementation Notes<\/span><\/strong><\/p>\n<p data-path-to-node=\"9\">When integrating or replacing the XC4VLX25-11FFG668I in an existing PCBA, engineers should prioritize the following:<\/p>\n<ol start=\"1\" data-path-to-node=\"10\">\n<li>\n<p data-path-to-node=\"10,0,0\"><b data-path-to-node=\"10,0,0\" data-index-in-node=\"0\">Timing Closure:<\/b> The -11 speed grade offers tighter propagation delays than the base -10. If you are replacing a -10 part with this -11, your bitstream will remain compatible, but verify that your hold-time requirements are still met given the faster silicon.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"10,1,0\"><b data-path-to-node=\"10,1,0\" data-index-in-node=\"0\">Thermal Management:<\/b> The Industrial rating (<span class=\"math-inline\" data-math=\"100\u00b0C\" data-index-in-node=\"43\">$100\u00b0C$<\/span> max junction temperature) is critical for sealed enclosures. However, the FFG668 flip-chip package requires a clean thermal interface. Ensure the existing heatsink or TIM (Thermal Interface Material) is cleared of oxidation if performing a field replacement.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"10,2,0\"><b data-path-to-node=\"10,2,0\" data-index-in-node=\"0\">I\/O Standards:<\/b> The Virtex-4 SelectIO technology supports a wide array of standards (LVDS, SSTL, HSTL). Ensure the <span class=\"math-inline\" data-math=\"V_{CCO}\" data-index-in-node=\"114\">$V_{CCO}$<\/span> rails on your board match the banking requirements defined in your <code data-path-to-node=\"10,2,0\" data-index-in-node=\"189\">.ucf<\/code> \u0623\u0648 <code data-path-to-node=\"10,2,0\" data-index-in-node=\"197\">.xdc<\/code> constraints.<\/p>\n<\/li>\n<\/ol>\n<p data-path-to-node=\"11\"><strong><span style=\"color: #003366;\">Legacy Support &amp; Life Cycle<\/span><\/strong><\/p>\n<p data-path-to-node=\"12\">The Virtex-4 family uses a <b data-path-to-node=\"12\" data-index-in-node=\"27\">90nm process technology<\/b>. For modern maintenance, this device requires the <b data-path-to-node=\"12\" data-index-in-node=\"101\">Xilinx ISE Design Suite (14.7)<\/b>. It is important to note that this part is not compatible with Vivado. If you are troubleshooting configuration issues, remember that the Virtex-4 utilizes a bitstream encryption (AES) and a unique configuration memory cells (CMVs) structure that differs from earlier Spartan or later 7-Series architectures.<\/p>\n<p data-path-to-node=\"12\"><a href=\"https:\/\/www.lxbchip.com\/ar\/contact-us\/\">\u0644\u0644\u062a\u0648\u0627\u0635\u0644 \u0645\u0639 LXB Semicon<\/a>\u00a0for availability, pricing, and technical support.<\/p>","protected":false},"excerpt":{"rendered":"<p><strong>\u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629:<\/strong> AMD \/ Xilinx<br \/>\n<strong>\u0627\u0644\u062e\u0644\u0627\u064a\u0627 \u0627\u0644\u0645\u0646\u0637\u0642\u064a\u0629:<\/strong> 24,576<br \/>\n<strong>\u0634\u0631\u0627\u0626\u062d \u0627\u0644\u0645\u0646\u0637\u0642:<\/strong> 2,400<br \/>\n<strong>\u0630\u0627\u0643\u0631\u0629 \u0627\u0644\u0648\u0635\u0648\u0644 \u0627\u0644\u0639\u0634\u0648\u0627\u0626\u064a \u0627\u0644\u0645\u062f\u0645\u062c\u0629 (eRAM):<\/strong> 1,658,880 1,658,880 \u0628\u062a<br \/>\n<strong>\u0627\u0644\u062d\u0632\u0645\u0629:<\/strong> FFG668 (27 \u00d7 27 \u0645\u0645)<br \/>\n<strong>\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644:<\/strong> \u0645\u0646 40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +100 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 (\u0635\u0646\u0627\u0639\u064a)<\/p>","protected":false},"featured_media":96,"template":"","meta":{"_acf_changed":false,"jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"product_brand":[68],"product_cat":[21],"product_tag":[69],"class_list":{"0":"post-95","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-xilinx","7":"product_cat-xilinx","8":"product_tag-virtex-4-lx","10":"first","11":"instock","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"acf":[],"aioseo_notices":[],"jetpack_publicize_connections":[],"_links":{"self":[{"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/product\/95","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/media\/96"}],"wp:attachment":[{"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/media?parent=95"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/product_brand?post=95"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/product_cat?post=95"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.lxbchip.com\/ar\/wp-json\/wp\/v2\/product_tag?post=95"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}