{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LAN7801T-I/9JX","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"LAN7801T-I-9JX","canonicalUrl":"https://icboms.com/microchip/LAN7801T-I-9JX","factsUrl":"https://icboms.com/api/mcp/products/LAN7801T-I%2F9JX","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology LAN7801T-I/9JX USB 3.1 to Ethernet bridge controller, 64-VFQFN exposed pad, -40°C to 85°C, Tape & Reel.","salesMarkdown":"## USB 3.1 to Ethernet bridging — what the function means for the BOM The LAN7801T-I/9JX is a single-chip USB 3.1 to Ethernet bridge controller — it presents a USB 3.1 SuperSpeed device interface on one side and a 10/100/1000 Ethernet MAC/PHY on the other, so a host with a USB port gains a wired network connection without an internal PCIe or MII bus. This is not a USB hub or a PHY-only part; it is a full bridge that handles the USB protocol stack and the Ethernet framing in one package, which means the host CPU offloads the network traffic processing. ## Package and rework — 64-VFQFN with exposed pad The 64-VFQFN exposed-pad package (Microchip calls it 64-SQFN, 9x9 mm) has a large centre thermal pad that must be soldered to a PCB ground plane for both thermal relief and electrical ground. Will it survive the hot air? Yes, but the exposed pad needs a preheat soak at 150°C to avoid warping the package during removal.","metaTitle":"LAN7801T-I/9JX USB 3.1 to Ethernet Bridge, 64-SQFN","metaDescription":"Microchip LAN7801T-I/9JX USB 3.1 to Ethernet bridge controller. Active production, -40°C to 85°C, 64-VFQFN. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Bridge, USB to Ethernet","Protocol":"USB","Interface":"Ethernet","Standards":"USB 3.1","Package / Case":"64-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"1.8V ~ 3.3V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"64-SQFN (9x9)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.17","priceTiers":[{"qty":1,"price":"$10.17000","currency":"USD"},{"qty":25,"price":"$9.25520","currency":"USD"},{"qty":3300,"price":"$9.25500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/757d0b5fc901fa43ca63731f4b0bc6a5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LAN7801T-I%2F9JX/alternatives.json"},"ai":{"faq":[{"question":"Will LAN7801T-I/9JX drop into a board that was specified around USB2514BT/M2 without rewiring?","answer":"No. The USB2514BT/M2 is a USB 2.0 hub controller, not a USB-to-Ethernet bridge — the function, pinout, and package are different. The LAN7801T-I/9JX cannot serve as a drop-in replacement for a hub controller, and the board layout would need a complete redesign."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/LAN7801T-I-9JX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/LAN7801T-I-9JX when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}