{"id":6649,"date":"2025-11-18T16:15:48","date_gmt":"2025-11-18T08:15:48","guid":{"rendered":"https:\/\/www.lxbchip.com\/?post_type=product&#038;p=6649"},"modified":"2026-01-29T19:12:02","modified_gmt":"2026-01-29T11:12:02","slug":"xc4vlx25-11sfg363c","status":"publish","type":"product","link":"https:\/\/www.lxbchip.com\/de\/products\/xc4vlx25-11sfg363c\/","title":{"rendered":"XC4VLX25-11SFG363C"},"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=\" Modell P\/Nundefined\">MODELL P\/N<\/th>\n<th class=\"wdtheader sort column-series sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" Serieundefined\">SERIE<\/th>\n<th class=\"wdtheader sort numdata float column-numberoflabsclbs sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" Anzahl der LABs\/CLBsundefined\">ANZAHL DER LABORE\/KLINIKEN<\/th>\n<th class=\"wdtheader sort numdata float column-speedgrade sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" GeschwindigkeitsgradDefiniert\">GESCHWINDIGKEITSSTUFE<\/th>\n<th class=\"wdtheader sort column-numberoflogicelementscells sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" Anzahl der Logikelemente \/ Zellenundefined\">ANZAHL DER LOGIKELEMENTE \/ ZELLEN<\/th>\n<th class=\"wdtheader sort column-totalrambits sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" Total RAM Bitsundefined\">RAM-BITS INSGESAMT<\/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=\" Anzahl der E\/A unbestimmt\" aria-sort=\"ascending\">ANZAHL DER E\/A<\/th>\n<th class=\"wdtheader sort column-voltagesupply sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" Spannung - Versorgungundefiniert\">SPANNUNG - VERSORGUNG<\/th>\n<th class=\"wdtheader sort column-mountingtype sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" Montageartundefined\">BEFESTIGUNGSTYP<\/th>\n<th class=\"wdtheader sort column-operatingtemperature sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" BetriebstemperaturUndefiniert\">BETRIEBSTEMPERATUR<\/th>\n<th class=\"wdtheader sort column-packagecase sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" Paket \/ Koffer definiert\">VERPACKUNG \/ KASSE<\/th>\n<th class=\"wdtheader sort column-supplierdevicepackage sorting\" tabindex=\"0\" colspan=\"1\" rowspan=\"1\" aria-controls=\"table_1\" aria-label=\" Lieferant Ger\u00e4tepaketundefiniert\">LIEFERANT GER\u00c4TEPAKET<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"odd\">\n<td class=\"expand column-modelpn\">XC4VLX25-11SFG363C<\/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 Logische Elemente<\/td>\n<td class=\"column-totalrambits\">1.327.104 Bits<\/td>\n<td class=\"numdata integer column-numberofio sorting_1\">240<\/td>\n<td class=\"column-voltagesupply\">1,14 V ~ 1,26 V<\/td>\n<td class=\"column-mountingtype\">Oberfl\u00e4chenmontage<\/td>\n<td class=\"column-operatingtemperature\">Handels\u00fcblich (0\u00b0C ~ +85\u00b0C)<\/td>\n<td class=\"column-packagecase\">363-FBGA, FCBGA<\/td>\n<td class=\"column-supplierdevicepackage\">363-FCBGA (17\u00d717)<\/td>\n<\/tr>\n<\/tbody>\n<tfoot><\/tfoot>\n<\/table>\n<p data-path-to-node=\"3\"><span style=\"color: #003366;\"><strong>XC4VLX25-11SFG363C: High-Performance Virtex-4 LX in a Compact 17mm Footprint<\/strong><\/span><\/p>\n<p data-path-to-node=\"4\">Die <b data-path-to-node=\"4\" data-index-in-node=\"4\">XC4VLX25-11SFG363C<\/b> is a logic-optimized FPGA within the Xilinx Virtex-4 LX family, specifically binned for the <b data-path-to-node=\"4\" data-index-in-node=\"115\">-11 speed grade<\/b>. This device is the ideal solution for high-speed logic applications\u2014such as LVDS data concentration, PCIe bridging, or high-frequency state machines\u2014where board real estate is at a premium.<\/p>\n<p data-path-to-node=\"5\">By utilizing the <b data-path-to-node=\"5\" data-index-in-node=\"17\">SFG363 package<\/b>, this FPGA delivers over 24k logic cells in a small-form-factor BGA. The -11 speed grade provides roughly a 10-15% performance improvement over the base -10 version, allowing for easier timing closure on complex, high-frequency designs.<\/p>\n<p data-path-to-node=\"6\"><strong><span style=\"color: #003366;\">Core Technical Specifications<\/span><\/strong><\/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\">Logische Zellen:<\/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<\/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\">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\">Max User I\/O:<\/b> 240<\/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\">Paket:<\/b> SFG363 (17mm x 17mm, 0.8mm ball pitch, Lead-Free\/RoHS)<\/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\">Geschwindigkeitsstufe:<\/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> Handels\u00fcblich (0\u00b0C bis +85\u00b0C)<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"8\"><strong><span style=\"color: #003366;\">Engineering Implementation &amp; Design Considerations<\/span><\/strong><\/p>\n<h4 data-path-to-node=\"9\">1. Timing Margin and the -11 Speed Grade<\/h4>\n<p data-path-to-node=\"10\">The -11 speed grade is critical for designs operating near the upper frequency limits of the 90nm Virtex-4 architecture. If your design is failing to meet setup time (<span class=\"math-inline\" data-math=\"T_{su}\" data-index-in-node=\"167\">$T_{su}$<\/span>) in a -10 speed grade, the XC4VLX25-11 provides the necessary slack. However, always re-run your Static Timing Analysis (STA) in ISE to ensure that hold times (<span class=\"math-inline\" data-math=\"T_h\" data-index-in-node=\"334\">$T_h$<\/span>) remain compliant, as the faster silicon reduces propagation delays across the fabric.<\/p>\n<h4 data-path-to-node=\"11\">2. SFG363 Routing Challenges<\/h4>\n<p data-path-to-node=\"12\">The 0.8mm ball pitch of the SFG363 package is significantly tighter than the 1.0mm pitch used in the 668-pin variants.<\/p>\n<ul data-path-to-node=\"13\">\n<li>\n<p data-path-to-node=\"13,0,0\"><b data-path-to-node=\"13,0,0\" data-index-in-node=\"0\">PCB Stack-up:<\/b> Ensure your PCB vendor can support the required trace widths and clearances for BGA breakout.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,1,0\"><b data-path-to-node=\"13,1,0\" data-index-in-node=\"0\">Via-in-Pad:<\/b> Depending on your density, via-in-pad technology may be required to access the inner I\/O rings while maintaining signal integrity for high-speed differential pairs.<\/p>\n<\/li>\n<\/ul>\n<h4 data-path-to-node=\"14\">3. Legacy Toolchain Compatibility<\/h4>\n<p data-path-to-node=\"15\">The XC4VLX25-11SFG363C is a mature component and is <b data-path-to-node=\"15\" data-index-in-node=\"52\">not supported by Xilinx Vivado<\/b>. Maintenance and new bitstream generation require <b data-path-to-node=\"15\" data-index-in-node=\"133\">Xilinx ISE Design Suite 14.7<\/b>. When migrating designs, verify that your <code data-path-to-node=\"15\" data-index-in-node=\"204\">.ucf<\/code> constraints reflect the SF363 pinout, as it is not pin-compatible with the larger FFG668 footprint.<\/p>\n<hr data-path-to-node=\"16\" \/>\n<p data-path-to-node=\"17\"><strong><span style=\"color: #003366;\">Comparison: Virtex-4 LX25 &#8211; Speed &amp; Package Options<\/span><\/strong><\/p>\n<table data-path-to-node=\"18\">\n<thead>\n<tr>\n<td><strong>Merkmal<\/strong><\/td>\n<td><strong>XC4VLX25-11SFG363C<\/strong><\/td>\n<td><strong>XC4VLX25-10SFG363C<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"18,1,0,0\"><b data-path-to-node=\"18,1,0,0\" data-index-in-node=\"0\">Geschwindigkeitsstufe<\/b><\/span><\/td>\n<td><span data-path-to-node=\"18,1,1,0\"><b data-path-to-node=\"18,1,1,0\" data-index-in-node=\"0\">-11 (Faster)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"18,1,2,0\">-10 (Standard)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"18,2,0,0\"><b data-path-to-node=\"18,2,0,0\" data-index-in-node=\"0\">Logic Performance<\/b><\/span><\/td>\n<td><span data-path-to-node=\"18,2,1,0\">Higher Timing Margin<\/span><\/td>\n<td><span data-path-to-node=\"18,2,2,0\">Standard Logic<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"18,3,0,0\"><b data-path-to-node=\"18,3,0,0\" data-index-in-node=\"0\">Paket<\/b><\/span><\/td>\n<td><span data-path-to-node=\"18,3,1,0\">17mm SFG363<\/span><\/td>\n<td><span data-path-to-node=\"18,3,2,0\">17mm SFG363<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"18,4,0,0\"><b data-path-to-node=\"18,4,0,0\" data-index-in-node=\"0\">I\/O Count<\/b><\/span><\/td>\n<td><span data-path-to-node=\"18,4,1,0\">240<\/span><\/td>\n<td><span data-path-to-node=\"18,4,2,0\">240<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr data-path-to-node=\"19\" \/>\n<p data-path-to-node=\"20\"><strong><span style=\"color: #003366;\">Hardware Engineer\u2019s FAQ<\/span><\/strong><\/p>\n<p data-path-to-node=\"21\"><b data-path-to-node=\"21\" data-index-in-node=\"0\">Can I use the XC4VLX25-11SFG363C as a drop-in replacement for the -10 speed grade?<\/b><\/p>\n<p data-path-to-node=\"21\">Yes. Xilinx FPGAs are backward compatible regarding speed grades. A -11 part will meet or exceed all timing requirements of a -10 part. Note that while timing improves, you should monitor localized thermal density if the part is running at significantly higher toggle rates.<\/p>\n<p data-path-to-node=\"22\"><b data-path-to-node=\"22\" data-index-in-node=\"0\">What is the &#8220;G&#8221; in the SFG363 package name?<\/b><\/p>\n<p data-path-to-node=\"22\">The &#8220;G&#8221; designates a Lead-Free (RoHS compliant) package. This is the standard for modern assembly, though it requires a slightly different reflow profile compared to the older leaded (SF363) versions.<\/p>\n<p data-path-to-node=\"23\"><b data-path-to-node=\"23\" data-index-in-node=\"0\">Why is the I\/O count only 240 compared to other LX25 parts?<\/b><\/p>\n<p data-path-to-node=\"23\">The LX25 die has more I\/O capability, but the SF363 package is physically too small to bond out all available signals. This is a deliberate trade-off for size. If your design requires more than 240 I\/Os, you must migrate to the FFG668 package.<\/p>\n<hr data-path-to-node=\"24\" \/>\n<p data-path-to-node=\"25\"><b data-path-to-node=\"25\" data-index-in-node=\"0\">Looking for verifiable stock or an official quote?<\/b><\/p>\n<p data-path-to-node=\"25\">We specialize in sourcing mature-market Xilinx silicon with full traceability. We understand that for legacy infrastructure, getting the exact speed grade and package is non-negotiable for system stability.<\/p>\n<p data-path-to-node=\"26\">Would you like me to pull the specific IBIS models or the Pin-to-Pin delay tables for this -11 speed grade part?<\/p>\n<p data-path-to-node=\"26\"><a href=\"https:\/\/www.lxbchip.com\/de\/contact-us\/\">Kontakt zu LXB Semicon<\/a>\u00a0for availability, pricing, and technical support.<\/p>","protected":false},"excerpt":{"rendered":"<p><strong>Hersteller:<\/strong> Xilinx<br \/>\n<strong>Logische Zellen:<\/strong> 24,576<br \/>\n<strong>Logische Schnitte:<\/strong> 1,536<br \/>\n<strong>Eingebettetes RAM (eRAM):<\/strong> 1.105.920 Bits<br \/>\n<strong>Paket:<\/strong> SFG363<br \/>\n<strong>Betriebstemperatur:<\/strong> Handels\u00fcblich (0\u00b0C bis +85\u00b0C)<\/p>","protected":false},"featured_media":6120,"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-6649","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\/de\/wp-json\/wp\/v2\/product\/6649","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lxbchip.com\/de\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.lxbchip.com\/de\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lxbchip.com\/de\/wp-json\/wp\/v2\/media\/6120"}],"wp:attachment":[{"href":"https:\/\/www.lxbchip.com\/de\/wp-json\/wp\/v2\/media?parent=6649"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.lxbchip.com\/de\/wp-json\/wp\/v2\/product_brand?post=6649"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.lxbchip.com\/de\/wp-json\/wp\/v2\/product_cat?post=6649"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.lxbchip.com\/de\/wp-json\/wp\/v2\/product_tag?post=6649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}