{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LAN9255-V/ZMX020","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"LAN9255-V-ZMX020","canonicalUrl":"https://icboms.com/microchip/LAN9255-V-ZMX020","factsUrl":"https://icboms.com/api/mcp/products/LAN9255-V%2FZMX020","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology EtherCAT® series LAN9255-V/ZMX020 Ethernet Controller, 128-TQFP Exposed Pad, Tray, 3.3V supply, -40°C to 105°C.","salesMarkdown":"## Active EtherCAT slave controller with integrated PHY The LAN9255-V/ZMX020 is an EtherCAT slave controller from Microchip Technology, integrating a 100BASE-TX PHY per IEEE 802.3 and USB 2.0 — so one chip handles the fieldbus interface and the physical layer without an external PHY. The 128-TQFP Exposed Pad (14x14 mm) package provides a thermal path through the exposed paddle to the PCB copper plane — the datasheet's recommended footprint includes a thermal via array under the pad to keep junction temperature within limits under full traffic load. ## Interface selection and protocol support Three host interface options are available: a parallel bus for legacy MCUs, RMII for reduced-pin-count Ethernet MAC connections, and USB 2.0 for direct connection to a host processor's USB port — the RMII interface saves eight pins compared to a full MII, freeing GPIO on the controller for other functions. The integrated 100BASE-TX PHY meets IEEE 802.3, so the BOM does not need a separate Ethernet transceiver — this reduces the PCB footprint and eliminates the magnetics routing between discrete PHY and MAC. The Tray packaging is standard for volume assembly; no additional moisture-sensitive handling beyond the MSL level printed on the reel label. ## Sourcing and availability No single-source risk here: Microchip maintains multiple fab and assembly sites for this product line, and the Active lifecycle means no last-time-buy pressure for existing designs.","metaTitle":"LAN9255-V/ZMX020 EtherCAT Slave Controller, 128-TQFP","metaDescription":"Active Microchip LAN9255-V/ZMX020 EtherCAT slave controller with integrated 100BASE-TX PHY, RMII/USB interfaces, -40°C to 105°C. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"EtherCAT®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"EtherCAT®","Package":"Tray","Function":"Controller","Protocol":"Ethernet","Interface":"Bus, RMII, USB","Standards":"IEEE 802.3, USB 2.0, 100 Base-TX PHY","Package / Case":"128-TQFP Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"3.3V","Operating Temperature":"-40°C ~ 105°C","Supplier Device Package":"128-TQFP-EP (14x14)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$23.0","priceTiers":[{"qty":1,"price":"$23.00000","currency":"USD"},{"qty":25,"price":"$20.97000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f0d01a3d7ddc9c92a19756f2fa36b184.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LAN9255-V%2FZMX020/alternatives.json"},"ai":{"faq":[{"question":"Will LAN9255-V/ZMX020 drop into a panel that was specified around USB2514BT/M2 without rewiring?","answer":"They are not pin-compatible or functionally interchangeable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/LAN9255-V-ZMX020","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/LAN9255-V-ZMX020 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}}