{"id":6646,"date":"2025-11-18T16:04:09","date_gmt":"2025-11-18T08:04:09","guid":{"rendered":"https:\/\/www.lxbchip.com\/?post_type=product&#038;p=6646"},"modified":"2026-01-29T19:01:57","modified_gmt":"2026-01-29T11:01:57","slug":"xc4vlx25-11ffg668c","status":"publish","type":"product","link":"https:\/\/www.lxbchip.com\/ko\/products\/xc4vlx25-11ffg668c\/","title":{"rendered":"XC4VLX25-11FFG668C"},"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=\" \ubaa8\ub378 P\/\uc815\uc758\ub418\uc9c0 \uc54a\uc74c\">\ubaa8\ub378 P\/N<\/th>\n<th class=\"wdtheader sort column-series sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \uc2dc\ub9ac\uc988 \uc815\uc758\ub418\uc9c0 \uc54a\uc74c\">\uc2dc\ub9ac\uc988<\/th>\n<th class=\"wdtheader sort numdata float column-numberoflabsclbs sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" LAB\/CLB \uac1c\uc218\uc815\uc758\ub418\uc9c0 \uc54a\uc74c\">\uc2e4\ud5d8\uc2e4\/CLBS \uc218<\/th>\n<th class=\"wdtheader sort numdata float column-speedgrade sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \uc18d\ub3c4 \ub4f1\uae09\uc815\uc758\ub418\uc9c0 \uc54a\uc74c\">\uc18d\ub3c4 \ub4f1\uae09<\/th>\n<th class=\"wdtheader sort column-numberoflogicelementscells sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \ub17c\ub9ac \uc694\uc18c\/\uc140 \uc218 \uc815\uc758\ub418\uc9c0 \uc54a\uc74c\">\ub17c\ub9ac \uc694\uc18c\/\uc140 \uc218<\/th>\n<th class=\"wdtheader sort column-totalrambits sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \ucd1d RAM \ube44\ud2b8\uc218\uc815\uc758\ub418\uc9c0 \uc54a\uc74c\">\ucd1d \ub7a8 \ube44\ud2b8<\/th>\n<th class=\"wdtheader sort numdata integer column-numberofio sorting sorting_asc\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" I\/O \uac1c\uc218\uc815\uc758\ub418\uc9c0 \uc54a\uc74c\" aria-sort=\"ascending\">I\/O \uc218<\/th>\n<th class=\"wdtheader sort column-voltagesupply sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \uc804\uc555 - \uacf5\uae09\uc7a5\uce58 \uc815\uc758\ub418\uc9c0 \uc54a\uc74c\">\uc804\uc555 - \uacf5\uae09<\/th>\n<th class=\"wdtheader sort column-mountingtype sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \ub9c8\uc6b4\ud305 \uc720\ud615\uc815\uc758\ub418\uc9c0 \uc54a\uc74c\">\ub9c8\uc6b4\ud305 \uc720\ud615<\/th>\n<th class=\"wdtheader sort column-operatingtemperature sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \uc791\ub3d9 \uc628\ub3c4 \uc815\uc758\ub418\uc9c0 \uc54a\uc74c\">\uc791\ub3d9 \uc628\ub3c4<\/th>\n<th class=\"wdtheader sort column-packagecase sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \ud328\ud0a4\uc9c0 \/ \ucf00\uc774\uc2a4\uc815\uc758\ub418\uc9c0 \uc54a\uc74c\">\ud328\ud0a4\uc9c0 \/ \ucf00\uc774\uc2a4<\/th>\n<th class=\"wdtheader sort column-supplierdevicepackage sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" \uacf5\uae09\uc5c5\uccb4 \uc7a5\uce58 \ud328\ud0a4\uc9c0\uc815\uc758\ub418\uc9c0 \uc54a\uc74c\">\uacf5\uae09\uc5c5\uccb4 \ub514\ubc14\uc774\uc2a4 \ud328\ud0a4\uc9c0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"odd\">\n<td class=\"expand column-modelpn\">XC4VLX25-11FFG668C<\/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\">-11,00<\/td>\n<td class=\"column-numberoflogicelementscells\">24192 \ub17c\ub9ac \uc694\uc18c<\/td>\n<td class=\"column-totalrambits\">1,327,104\ube44\ud2b8<\/td>\n<td class=\"numdata integer column-numberofio sorting_1\">448<\/td>\n<td class=\"column-voltagesupply\">1.14V ~ 1.26V<\/td>\n<td class=\"column-mountingtype\">\ud45c\uba74 \uc2e4\uc7a5<\/td>\n<td class=\"column-operatingtemperature\">\uc0c1\uc5c5\uc6a9(0\u00b0C ~ +85\u00b0C)<\/td>\n<td class=\"column-packagecase\">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>XC4VLX25-11FFG668C: High-Speed Virtex-4 LX Logic Platform<\/strong><\/span><\/p>\n<p data-path-to-node=\"4\">\uadf8\ub9ac\uace0 <b data-path-to-node=\"4\" data-index-in-node=\"4\">XC4VLX25-11FFG668C<\/b> is a high-performance FPGA within the Virtex-4 LX family, optimized for logic-heavy applications that demand tighter timing margins. Utilizing the 90nm process, the LX series focuses on maximizing logic-to-feature ratios, making it the preferred choice for high-speed I\/O interfacing, frame buffering, and complex state machine implementations.<\/p>\n<p data-path-to-node=\"5\">As a <b data-path-to-node=\"5\" data-index-in-node=\"5\">-11 speed grade<\/b> device, this variant offers a performance boost over the standard -10, providing the necessary slack for designs running at higher clock frequencies or those with complex routing paths that are sensitive to propagation delays.<\/p>\n<p data-path-to-node=\"6\"><span style=\"color: #003366;\"><strong>Core Technical Parameters<\/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\">\ub85c\uc9c1 \uc140:<\/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\">Max Clock Management Tiles (CMTs):<\/b> 8 (Incorporating DCMs and PMCDs)<\/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\">RAM\uc744 \ucc28\ub2e8\ud569\ub2c8\ub2e4:<\/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\">Max User I\/O:<\/b> 448<\/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\">\ud328\ud0a4\uc9c0:<\/b> FFG668 (Fine-pitch Flip-Chip BGA, Pb-Free)<\/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\">\uc18d\ub3c4 \ub4f1\uae09:<\/b> -11 (High Performance)<\/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\">Temperature Grade:<\/b> Commercial (<span class=\"math-inline\" data-math=\"0\u00b0C\" data-index-in-node=\"31\">$0\u00b0C$<\/span> to <span class=\"math-inline\" data-math=\"+85\u00b0C\" data-index-in-node=\"38\">$+85\u00b0C$<\/span>)<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"8\"><span style=\"color: #003366;\"><strong>Engineering Implementation &amp; Design Notes<\/strong><\/span><\/p>\n<p data-path-to-node=\"9\">When integrating the XC4VLX25-11FFG668C into an existing system or a new legacy-support design, keep these hardware-level factors in mind:<\/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 is approximately 10-15% faster than the -10. While this aids in meeting setup times (<span class=\"math-inline\" data-math=\"T_{su}\" data-index-in-node=\"121\">$T_{su}$<\/span>), engineers should perform a secondary static timing analysis (STA) to ensure that hold time (<span class=\"math-inline\" data-math=\"T_h\" data-index-in-node=\"222\">$T_h$<\/span>) violations haven&#8217;t been introduced in short paths due to 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\">Configuration Requirements:<\/b> This device requires a 1.2V <span class=\"math-inline\" data-math=\"V_{CCINT}\" data-index-in-node=\"56\">$V_{CCINT}$<\/span> supply. Ensure your power distribution network (PDN) is decoupled correctly with low-ESR capacitors near the FFG668 footprint to manage the transient currents typical of high-speed switching in the Virtex-4 architecture.<\/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\">ISE Design Suite:<\/b> Note that the Virtex-4 family is <b data-path-to-node=\"10,2,0\" data-index-in-node=\"51\">not supported by Vivado<\/b>. You must use <b data-path-to-node=\"10,2,0\" data-index-in-node=\"89\">\uc790\uc77c\ub9c1\uc2a4 ISE 14.7<\/b>. If you are pulling an archived project, ensure your constraints file (.UCF) is mapped correctly to the 668-pinout to avoid I\/O bank voltage conflicts.<\/p>\n<\/li>\n<\/ol>\n<p data-path-to-node=\"11\"><span style=\"color: #003366;\"><strong>Why Sourcing the -11 Grade Matters<\/strong><\/span><\/p>\n<p data-path-to-node=\"12\">In many medical and defense systems, the XC4VLX25-11FFG668C was specified because the design would not &#8220;lock&#8221; at the -10 speed grade. Replacing a -11 with a -10 can lead to intermittent system crashes or bit errors. We prioritize providing the exact speed grade specified in your original netlist to maintain system integrity.<\/p>\n<p data-path-to-node=\"17\"><span style=\"color: #003366;\"><strong>Hardware Engineer\u2019s FAQ<\/strong><\/span><\/p>\n<p data-path-to-node=\"18\"><b data-path-to-node=\"18\" data-index-in-node=\"0\">Can I use a -12 speed grade instead of this -11?<\/b> Technically, yes. Xilinx speed grades are backward compatible; a faster part (-12) can always do the job of a slower part (-11), provided the thermal envelope remains within limits. However, the -11 is usually the &#8220;sweet spot&#8221; for cost vs. performance in maintenance cycles.<\/p>\n<p data-path-to-node=\"19\"><b data-path-to-node=\"19\" data-index-in-node=\"0\">Does the FFG668 package require specialized soldering?<\/b> The &#8220;FFG&#8221; signifies a Lead-Free Flip-Chip BGA. It requires a standard RoHS reflow profile. Because the die is mounted directly to the substrate (Flip-Chip), the package has excellent heat dissipation through the top of the chip, but it is sensitive to uneven mechanical pressure from heatsinks.<\/p>\n<p data-path-to-node=\"20\"><b data-path-to-node=\"20\" data-index-in-node=\"0\">How do I handle the EOL (End of Life) status of this part?<\/b> The Virtex-4 is a mature product. When sourcing, we recommend requesting the specific Date Code (D\/C) and ensuring the parts have been stored in MSL-compliant (Moisture Sensitivity Level) packaging to prevent popcorn effects during reflow.<\/p>\n<p data-path-to-node=\"20\"><a href=\"https:\/\/www.lxbchip.com\/ko\/contact-us\/\">LXB \uc138\ubbf8\ucf58\uc5d0 \ubb38\uc758<\/a>\u00a0for availability, pricing, and technical support.<\/p>","protected":false},"excerpt":{"rendered":"<p><strong>\uc81c\uc870\uc5c5\uccb4:<\/strong> \uc790\uc77c\ub9c1\uc2a4<br \/>\n<strong>\ub85c\uc9c1 \uc140:<\/strong> 24,576<br \/>\n<strong>\ub85c\uc9c1 \uc2ac\ub77c\uc774\uc2a4:<\/strong> 1,536<br \/>\n<strong>\uc784\ubca0\ub514\ub4dc RAM(eRAM):<\/strong> 1,105,920 bits<br \/>\n<strong>\ud328\ud0a4\uc9c0:<\/strong> FFG668<br \/>\n<strong>\uc791\ub3d9 \uc628\ub3c4:<\/strong> \uc0c1\uc5c5\uc6a9(0\u00b0C ~ +85\u00b0C)<\/p>","protected":false},"featured_media":6118,"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":[],"product_cat":[21],"product_tag":[],"class_list":{"0":"post-6646","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-xilinx","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"aioseo_notices":[],"jetpack_publicize_connections":[],"_links":{"self":[{"href":"https:\/\/www.lxbchip.com\/ko\/wp-json\/wp\/v2\/product\/6646","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lxbchip.com\/ko\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.lxbchip.com\/ko\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lxbchip.com\/ko\/wp-json\/wp\/v2\/media\/6118"}],"wp:attachment":[{"href":"https:\/\/www.lxbchip.com\/ko\/wp-json\/wp\/v2\/media?parent=6646"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.lxbchip.com\/ko\/wp-json\/wp\/v2\/product_brand?post=6646"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.lxbchip.com\/ko\/wp-json\/wp\/v2\/product_cat?post=6646"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.lxbchip.com\/ko\/wp-json\/wp\/v2\/product_tag?post=6646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}