{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"932SQ428AKLF","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"932SQ428AKLF","canonicalUrl":"https://icboms.com/renesas/932SQ428AKLF","factsUrl":"https://icboms.com/api/mcp/products/932SQ428AKLF","rawCanonicalId":null},"summary":{"shortDescription":"Renesas Electronics 932SQ428AKLF, PLL clock synthesizer, 1:13 HCSL outputs, 144.44 MHz max, Intel Romley platform, 48-QFN (6x6), tray, active production.","salesMarkdown":"## PLL clock synthesizer for the Romley server clock tree The 932SQ428AKLF is a PLL-based clock synthesizer from Renesas, designed to generate up to 13 HCSL outputs from a single crystal input. Its primary target is the Intel Romley platform — the Xeon -2600 family server chipset — where it provides the reference clocks for PCIe, QPI, and DDR3 interfaces. Maximum output frequency is 144.44 MHz, which covers the 100 MHz PCIe reference and 133.33 MHz QPI clock requirements typical of Romley designs. The differential outputs are HCSL, the standard signaling for PCIe Gen1/2/3 reference clocks. ## Supply rail and temperature range for server boards The commercial temperature grade (0°C to 70°C) suits data-center ambient conditions but is not rated for extended industrial or outdoor use. Packaged in a 48-VFQFN with exposed pad (6x6 mm), the 48-QFN footprint requires a thermal via array under the paddle for adequate heat transfer to the ground plane. Mounting is surface-mount only. ## Active production — no obsolescence risk for new builds ROHS3 compliant. ## Comparing with the 9ZXL0851EKKLF — wider temperature and differential input The 9ZXL0851EKKLF targets Intel QPI and PCIe with a 1:8 fanout and a 400 MHz maximum — higher frequency but fewer outputs.","metaTitle":"932SQ428AKLF Renesas Clock Synthesizer – Active, Romley","metaDescription":"932SQ428AKLF PLL clock synthesizer from Renesas, active production, 1:13 HCSL outputs, 144.44 MHz max, Intel Romley platform, 48-QFN package. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes","Input":"Crystal","Output":"HCSL","Package":"Tray","Main Purpose":"Intel, Romley","Mounting Type":"Surface Mount","Package / Case":"48-VFQFN Exposed Pad","Frequency - Max":"144.44MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.135V ~ 3.465V","Number of Circuits":"1","Ratio - Input:Output":"1:13","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"48-QFN (6x6)","Differential - Input:Output":"No/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.7","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$10.70000","currency":"USD"},{"qty":10,"price":"$9.66300","currency":"USD"},{"qty":25,"price":"$9.21360","currency":"USD"},{"qty":80,"price":"$8.00000","currency":"USD"},{"qty":230,"price":"$7.64048","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f9aab114ab583e5d89cd9f3101756fa6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the 932SQ428AKLF compatible with the Intel Romley platform?","answer":"Yes, the main purpose is explicitly listed as Intel Romley. It generates the 100 MHz PCIe and 133.33 MHz QPI reference clocks needed by the Xeon -2600 chipset, with 13 HCSL outputs to fan out to multiple lanes."},{"question":"What is the maximum output frequency of the 932SQ428AKLF?","answer":"The maximum output frequency is 144.44 MHz. This covers the standard PCIe reference clock (100 MHz) and QPI clock (133.33 MHz) used on Romley platforms."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/932SQ428AKLF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/932SQ428AKLF 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}}