{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"9ZX21901BKLFT","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"9ZX21901BKLFT","canonicalUrl":"https://icboms.com/renesas/9ZX21901BKLFT","factsUrl":"https://icboms.com/api/mcp/products/9ZX21901BKLFT","rawCanonicalId":null},"summary":{"shortDescription":"Renesas 9ZX21901BKLFT, PCI Express / Intel QPI clock buffer, PLL Yes, Input Clock, Output HCSL, 400 MHz max, 2:19 ratio, 3.135V–3.465V supply, 0°C to 70°C, 72-VFQFPN (10x10).","salesMarkdown":"## PCIe clock distribution in a 72-VFQFPN The Renesas 9ZX21901BKLFT is a PLL-based clock buffer for Intel QPI and PCI Express interfaces. It accepts two differential input clocks and fans them out to 19 HCSL outputs at up to 400 MHz. ## Active, ROHS3, no LTB risk The 9ZX21901BKLFT carries an Active product status and is ROHS3 compliant. No last-time-buy notice or end-of-life announcement is on record.","metaTitle":"9ZX21901BKLFT PCIe Clock Buffer, 400 MHz, 2:19 Fanout","metaDescription":"Renesas 9ZX21901BKLFT PCIe clock buffer with PLL, 400 MHz max, 2:19 HCSL fanout, 3.3V supply, 72-VFQFPN. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PLL":"Yes","Input":"Clock","Output":"HCSL","Package":"Tape & Reel (TR); Cut Tape (CT)","Main Purpose":"Intel QPI, PCI Express (PCIe)","Mounting Type":"Surface Mount","Package / Case":"72-VFQFN Exposed Pad","Frequency - Max":"400MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.135V ~ 3.465V","Number of Circuits":"1","Ratio - Input:Output":"2:19","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"72-VFQFPN (10x10)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.52","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.52000","currency":"USD"},{"qty":10,"price":"$6.79700","currency":"USD"},{"qty":25,"price":"$6.48080","currency":"USD"},{"qty":100,"price":"$5.62710","currency":"USD"},{"qty":250,"price":"$5.37420","currency":"USD"},{"qty":500,"price":"$4.90002","currency":"USD"},{"qty":1000,"price":"$4.26776","currency":"USD"},{"qty":2500,"price":"$4.10969","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ea20926b811f2d31f2210615c6f391e0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum frequency of 9ZX21901BKLFT?","answer":"The maximum output frequency is 400 MHz, which covers PCIe Gen1/2/3 and Intel QPI reference clock requirements."},{"question":"Is 9ZX21901BKLFT RoHS compliant?","answer":"Yes, it is ROHS3 compliant."},{"question":"What is a direct replacement or equivalent for the 9ZX21901BKLFT?","answer":"The 9DB803DFLFT is a functional peer with the same PLL, HCSL output, and PCIe purpose, but it offers a 1:8 fanout instead of 2:19. For a wider fanout, the 9ZX21901BKLFT is the higher-density option."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/9ZX21901BKLFT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/9ZX21901BKLFT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}