{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS21348T+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS21348T","canonicalUrl":"https://icboms.com/analog-devices/DS21348T","factsUrl":"https://icboms.com/api/mcp/products/DS21348T%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS21348T+ Line Interface Unit (LIU), 44-TQFP surface mount package, 66mA supply current, 3.135V to 3.465V supply range, 0°C to 70°C operating temperature, Tray packaging.","salesMarkdown":"## What this LIU does on the board The DS21348T+ is a single-channel Line Interface Unit (LIU) from Analog Devices, packaged in a 44-TQFP (10x10 mm) surface-mount package supplied in tray format. It functions as a telecom interface IC, handling the physical-layer electrical interface between the line transformer and the framer/mapper in T1//J1 communication links. ## Sourcing and compliance posture For a BOM that requires a second-source hedge, a parametric search across Analog Devices' LIU portfolio in the same 44-TQFP footprint would be the next step — but no drop-in alternative is documented.","metaTitle":"DS21348T+ Analog Devices LIU, 44-TQFP, 66mA, Active","metaDescription":"DS21348T+ Line Interface Unit from Analog Devices. 44-TQFP surface mount package, 66mA supply, 3.135-3.465V range, 0-70°C. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"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":"0°C ~ 70°C","Supplier Device Package":"44-TQFP (10x10)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$21.34","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$21.34000","currency":"USD"},{"qty":10,"price":"$19.68600","currency":"USD"},{"qty":25,"price":"$18.80120","currency":"USD"},{"qty":160,"price":"$16.81044","currency":"USD"},{"qty":320,"price":"$16.03628","currency":"USD"},{"qty":480,"price":"$15.26210","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the DS21348T+ function and package?","answer":"The DS21348T+ is a single-channel Line Interface Unit (LIU) for T1//J1 telecom interfaces. It comes in a 44-TQFP (10x10 mm) surface-mount package supplied in tray format."},{"question":"What compliance documentation does Analog Devices provide for DS21348T+?","answer":"The DS21348T+ is ROHS3 compliant, meeting the latest EU RoHS directive without exemptions. Analog Devices provides the standard RoHS certificate of compliance and material declaration datasheet for this part number."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS21348T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS21348T 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}}