When a DDR4 part goes end-of-life, a validated pin-to-pin replacement protects both your design and your margins. Here is a repeatable process.<\/p>\n
Match the package, pinout and signal definitions exactly. Functionally similar is not the same as pin-compatible \u2014 check the datasheet pin tables side by side.<\/p>\n
Same total density and organization, same rank, and a speed bin and timings the platform already supports. A tighter (lower) CL is generally safe; a looser one may fail to train.<\/p>\n
Keep the temperature grade equal or better. Note the vendor and any firmware\/ECC differences that could affect boot behavior.<\/p>\n
Order samples, run memory tests (e.g. MemTest, platform diagnostics) across temperature, and confirm stability under load before mass production.<\/p>\n
Record the cross-reference, test results and a PCN for your quality team and customers.<\/p>\n
Use our parts database<\/a> to look up alternatives or request samples<\/a> to validate a candidate.<\/em><\/p>","protected":false},"excerpt":{"rendered":" When a DDR4 part goes end-of-life, a validated pin-to-pin replacement protects your design and your margins. This guide walks through the cross-reference process step by step.<\/p>","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"wpai_generated_summary":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-93","post","type-post","status-publish","format-standard","hentry","category-replacement-guides"],"spectra_blocks_featured_image_url":null,"spectra_blocks_author_info":{"display_name":"","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&r=g","author_link":"https:\/\/www.gardarasemi.com\/en\/author\/","description":""},"_links":{"self":[{"href":"https:\/\/www.gardarasemi.com\/en\/wp-json\/wp\/v2\/posts\/93","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gardarasemi.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gardarasemi.com\/en\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gardarasemi.com\/en\/wp-json\/wp\/v2\/comments?post=93"}],"version-history":[{"count":1,"href":"https:\/\/www.gardarasemi.com\/en\/wp-json\/wp\/v2\/posts\/93\/revisions"}],"predecessor-version":[{"id":106,"href":"https:\/\/www.gardarasemi.com\/en\/wp-json\/wp\/v2\/posts\/93\/revisions\/106"}],"wp:attachment":[{"href":"https:\/\/www.gardarasemi.com\/en\/wp-json\/wp\/v2\/media?parent=93"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gardarasemi.com\/en\/wp-json\/wp\/v2\/categories?post=93"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gardarasemi.com\/en\/wp-json\/wp\/v2\/tags?post=93"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}