{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS21348TN+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS21348TN","canonicalUrl":"https://icboms.com/analog-devices/DS21348TN","factsUrl":"https://icboms.com/api/mcp/products/DS21348TN%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS21348TN+ Line Interface Unit (LIU), 44-TQFP (10x10), Surface Mount, 66mA supply, 3.135V ~ 3.465V, -40°C ~ 85°C, Tray.","salesMarkdown":"## Line Interface Unit for telecom line-side termination The DS21348TN+ is a single-channel Line Interface Unit (LIU) from Analog Devices, designed for the physical-layer interface between a digital telecom line and the framer or controller. It operates from a 3.135V to 3.465V supply, drawing 66mA typical. ## Package and thermal integration Housed in a 44-TQFP (10x10 mm) package with a 0.8 mm pitch, the DS21348TN+ mounts on standard surface-mount pads. The exposed paddle must be soldered to a ground-plane copper pour for thermal dissipation — the TQFP-44 body alone does not shed the 66mA load heat without the pad connection. No official second-source or pin-compatible alternative is listed — the BOM carries single-source risk for this LIU.","metaTitle":"Analog Devices DS21348TN+ LIU, 44-TQFP, 66mA","metaDescription":"DS21348TN+ from Analog Devices: Line Interface Unit, 3.135V-3.465V supply, 66mA, -40°C to +85°C, 44-TQFP. Active, RoHS3 compliant. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tray","Function":"Line Interface Unit (LIU)","Mounting Type":"Surface Mount","Package / Case":"44-TQFP","lifecycle_stage":"eol_hot","Current - Supply":"66mA","Voltage - Supply":"3.135V ~ 3.465V","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"44-TQFP (10x10)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$24.17","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$24.17000","currency":"USD"},{"qty":10,"price":"$22.29300","currency":"USD"},{"qty":25,"price":"$21.29080","currency":"USD"},{"qty":160,"price":"$19.03650","currency":"USD"},{"qty":320,"price":"$18.15981","currency":"USD"},{"qty":480,"price":"$17.28313","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"How can I order the DS21348TN+ or check availability?","answer":"The DS21348TN+ is sourced to order against an RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS21348TN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS21348TN 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}}