{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"557GI-03LF","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"557GI-03LF","canonicalUrl":"https://icboms.com/renesas/557GI-03LF","factsUrl":"https://icboms.com/api/mcp/products/557GI-03LF","rawCanonicalId":null},"summary":{"shortDescription":"Renesas 557GI-03LF PLL clock source, 200 MHz max, HCSL/LVDS output, 1:2 fanout, 2.97–3.63 V supply, -40 to 85°C, 16-TSSOP, for PCIe and Ethernet.","salesMarkdown":"## PLL clock source for PCIe and Ethernet timing The Renesas 557GI-03LF is a single-channel PLL clock source designed to generate a clean, jitter-compliant reference for PCI Express and Ethernet interfaces. It accepts a clock or crystal input and outputs one HCSL or LVDS pair — a 1:2 fanout — at frequencies up to 200 MHz. The differential output eliminates common-mode noise coupling into the PCIe reference clock tree, which is critical for keeping bit-error rates within the PHY's budget. Housed in a 16-TSSOP package, it operates from a 2.97 V to 3.63 V supply over the industrial temperature range of -40°C to 85°C, making it a fit for outdoor telecom cabinets, factory-floor switches, and motor-drive backplanes where the ambient temperature swings. ## Active lifecycle — no LTB watch needed The 557GI-03LF carries an Active status and ROHS3 compliance. For a BOM line that needs a PCIe reference clock, this part is safe to qualify into production without worrying about a near-term EOL. If you are dual-sourcing for supply resilience, the closest functional match in the same package footprint is the 9ZXL0851EKKLF — it offers a 1:8 fanout and 400 MHz ceiling, but the pinout and control logic differ; a board spin would be required.","metaTitle":"Renesas 557GI-03LF PCIe Clock Source, PLL, 200 MHz, 16-TSSOP","metaDescription":"Renesas 557GI-03LF PLL clock source for PCIe and Ethernet. 200 MHz max, HCSL/LVDS output, 2.97–3.63 V supply, -40 to 85°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"PLL":"Yes","Input":"Clock, Crystal","Output":"HCSL, LVDS","Package":"Tube","Main Purpose":"Ethernet, PCI Express (PCIe)","Mounting Type":"Surface Mount","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","Frequency - Max":"200MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"2.97V ~ 3.63V","Number of Circuits":"1","Ratio - Input:Output":"1:2","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"16-TSSOP","Differential - Input:Output":"No/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.61","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.61000","currency":"USD"},{"qty":10,"price":"$3.24500","currency":"USD"},{"qty":25,"price":"$3.06800","currency":"USD"},{"qty":100,"price":"$2.65880","currency":"USD"},{"qty":250,"price":"$2.52248","currency":"USD"},{"qty":500,"price":"$2.26340","currency":"USD"},{"qty":1000,"price":"$1.90890","currency":"USD"},{"qty":2500,"price":"$1.81346","currency":"USD"},{"qty":5000,"price":"$1.74528","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b3cfe53081b60757c6cf4c52b3b76410.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 557GI-03LF compatible with PCI Express Gen 3?","answer":"Yes, PCIe Gen 3 uses a 100 MHz reference clock, which falls within the 200 MHz maximum output frequency of this part. It is not compatible with Gen 4 or Gen 5, which require a 400 MHz reference."},{"question":"Are there any alternatives to 557GI-03LF?","answer":"The 9ZXL0851EKKLF is a functional alternative with a 1:8 fanout and 400 MHz ceiling, but it uses a different pinout and control interface. A board layout change is required to substitute it."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/557GI-03LF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/557GI-03LF 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}}