{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LAN9730-ABZJ-TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"LAN9730-ABZJ-TR","canonicalUrl":"https://icboms.com/microchip/LAN9730-ABZJ-TR","factsUrl":"https://icboms.com/api/mcp/products/LAN9730-ABZJ-TR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology LAN9730-ABZJ-TR, USB 2.0 to 10/100 Ethernet Bridge Controller, 56-VFQFN Exposed Pad, 3.3V, 0-70°C, Tape & Reel.","salesMarkdown":"## Device function and protocol stack The LAN9730-ABZJ-TR is a single-chip bridge that converts a USB 2.0 interface to a 10/100 Base-T/TX Ethernet PHY, integrating the MAC and PHY in one 56-QFN package. It implements the full USB 2.0 specification on the host side and the IEEE 802.3 10BASE-T and 100BASE-TX standards on the network side, auto-negotiating speed and duplex. The 3.3V single-rail supply simplifies power tree design — no additional 1.8V or 2.5V rails are required for the core. ## Package, footprint, and board integration Housed in a 56-VFQFN with exposed pad (8x8 mm body), the LAN9730-ABZJ-TR requires a thermal land pattern on the PCB to dissipate heat from the integrated PHY. The 0.5 mm pitch QFN demands a solder paste stencil with 0.25 mm aperture openings and a 0.125 mm step for the centre pad to avoid bridging. The package is moisture-sensitive — store unopened reels in a dry cabinet or bake before reflow if the floor life has been exceeded. ## Active lifecycle and compliance status It is ROHS3 compliant, meaning no restricted substances above the threshold limits — no additional exemption declarations are needed for EU market placement. The TR variant ships in standard 13-inch reels with 2500 units per reel, suitable for automated pick-and-place. The CT option is available for prototype or low-volume builds without committing to a full reel.","metaTitle":"Microchip LAN9730-ABZJ-TR USB 2.0 to 10/100 Ethernet Bridge","metaDescription":"Active Microchip LAN9730-ABZJ-TR USB 2.0 to 10/100 Ethernet controller in 56-QFN. 3.3V supply, 0-70°C. ROHS3. Sourced per 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":"Ethernet","Interface":"USB","Standards":"USB 2.0, 10/100 Base-T/TX PHY","Package / Case":"56-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"3.3V","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"56-QFN (8x8)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.55","priceTiers":[{"qty":1,"price":"$5.55000","currency":"USD"},{"qty":25,"price":"$4.62160","currency":"USD"},{"qty":100,"price":"$4.56000","currency":"USD"},{"qty":3000,"price":"$4.56000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2eb59e5718735cb03713f9016d4f8247.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LAN9730-ABZJ-TR/alternatives.json"},"ai":{"faq":[{"question":"Does the LAN9730-ABZJ-TR require an external PHY or magnetics?","answer":"No external PHY is needed — the LAN9730 integrates both the MAC and the 10/100 Base-T/TX PHY. External magnetics (a standard 1:1 Ethernet transformer with common-mode choke) are still required on the RJ-45 side for signal isolation and common-mode rejection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/LAN9730-ABZJ-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/LAN9730-ABZJ-TR 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}}