{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"8T49N281C-999NLGI","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"8T49N281C-999NLGI","canonicalUrl":"https://icboms.com/renesas/8T49N281C-999NLGI","factsUrl":"https://icboms.com/api/mcp/products/8T49N281C-999NLGI","rawCanonicalId":null},"summary":{"shortDescription":"Renesas Electronics FemtoClock® NG PLL clock generator, 8T49N281C-999NLGI, PLL Yes with Bypass, Input Crystal, Output LVPECL, 1:8 fanout, 56-VFQFN Exposed Pad, Tray.","salesMarkdown":"## PLL with bypass and 1:8 LVPECL fanout The 8T49N281C-999NLGI is a FemtoClock® NG PLL clock generator from Renesas that accepts a crystal input and delivers eight LVPECL outputs. The PLL includes a bypass mode, allowing the input reference to pass through uncorrupted when the PLL is not needed — useful for system test or failover scenarios where the clock source must remain deterministic. The 1:8 fanout ratio distributes one clean reference to eight loads without external clock buffers, saving board space and reducing additive jitter from additional fanout devices. The differential LVPECL output is specified for high-speed ADC/DAC reference clocks and serial data links where edge symmetry and low phase noise are critical. The 56-VFQFPN package with exposed pad (8x8 mm) requires the thermal pad to be soldered to a PCB ground plane for rated thermal performance. The single-circuit PLL with a 1:8 ratio means one reference input drives eight outputs — the divider/multiplier is Yes/No, so frequency synthesis is handled by the PLL feedback divider, not an output multiplier. Renesas lists the 8T49N281C-999NLGI as Active with no NRND or EOL notice. The part is ROHS3 compliant, covering the full RoHS exemption list without time-limited carve-outs — relevant for EU and UKCA markets where ROHS2 exemptions are expiring.","metaTitle":"Renesas 8T49N281C-999NLGI FemtoClock NG PLL, 1:8 LVPECL","metaDescription":"Renesas 8T49N281C-999NLGI FemtoClock NG PLL with bypass, 1:8 LVPECL fanout, 2.375V–3.465V supply, -40°C to 85°C. Active, ROHS3. Request quote.","metaKeywords":null},"attributes":{"series":"FemtoClock® NG","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"PLL":"Yes with Bypass","Input":"Crystal","Output":"LVPECL","Series":"FemtoClock® NG","Package":"Tray","Mounting Type":"Surface Mount","Package / Case":"56-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2.375V ~ 3.465V","Divider/Multiplier":"Yes/No","Number of Circuits":"1","Ratio - Input:Output":"1:8","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"56-VFQFPN (8x8)","Differential - Input:Output":"No/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$20.55","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$20.55000","currency":"USD"},{"qty":10,"price":"$18.88900","currency":"USD"},{"qty":25,"price":"$18.10560","currency":"USD"},{"qty":80,"price":"$15.95263","currency":"USD"},{"qty":260,"price":"$15.16969","currency":"USD"},{"qty":520,"price":"$14.19100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bb32381bdfc456094c233082253fb0c9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for 8T49N281C-999NLGI?","answer":"Submit an RFQ through this listing. The part is sourced through independent distribution channels."},{"question":"What is the closest functional second-source to 8T49N281C-999NLGI?","answer":"The 5P49V5944B000NDGI (VersaClock® 5) is a PLL clock generator with LVPECL output, but its fanout is 1:2 versus the 1:8 of the 8T49N281C-999NLGI. The supply voltage range also differs (1.71 V vs 2.375–3.465 V). A direct drop-in replacement without board changes is not available from the peer list."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/8T49N281C-999NLGI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/8T49N281C-999NLGI when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}