{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN75ALS191DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN75ALS191DR","canonicalUrl":"https://icboms.com/texas-instruments/SN75ALS191DR","factsUrl":"https://icboms.com/api/mcp/products/SN75ALS191DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN75ALS191DR RS422/RS485 dual line driver, 2/0 drivers/receivers, 8-SOIC surface-mount package, 4.75V-5.25V supply, 0°C-70°C operating temperature, active production, RoHS3 compliant.","salesMarkdown":"## What the dual driver means for your bus The SN75ALS191DR is a dual-channel RS422/RS485 line driver in an 8-SOIC package — two independent drivers in one 8-pin body, no receivers on die. That 2/0 count means it handles the transmit side of a differential bus only; you pair it with a separate receiver or transceiver for bidirectional links. ## Supply rails and temperature grade Runs on a single 5 V rail, 4.75 V to 5.25 V — the 5 V ±5 % tolerance covers most legacy backplane and industrial supply rails without an extra regulator. The 0 °C to 70 °C commercial temperature grade limits it to indoor, conditioned environments; not rated for the -40 °C industrial or automotive extremes. ## Package and footprint reality 8-SOIC with 0.154-inch body width (3.90 mm) and 1.27 mm pin pitch — a standard SOIC-8 footprint that routes easily on two-layer boards. The supplier device package is also 8-SOIC, so the land pattern is the same regardless of which TI packing variant you receive.","metaTitle":"SN75ALS191DR RS422/RS485 Driver, 8-SOIC, Texas Instruments","metaDescription":"SN75ALS191DR dual RS422/RS485 line driver in 8-SOIC. 4.75V-5.25V supply, 0°C-70°C. Active production, RoHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Driver","Package":"Tape & Reel (TR); Cut Tape (CT)","Protocol":"RS422, RS485","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"8-SOIC","Number of Drivers/Receivers":"2/0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.00000","currency":"USD"},{"qty":10,"price":"$1.79600","currency":"USD"},{"qty":25,"price":"$1.69440","currency":"USD"},{"qty":100,"price":"$1.44350","currency":"USD"},{"qty":250,"price":"$1.35544","currency":"USD"},{"qty":500,"price":"$1.18600","currency":"USD"},{"qty":1000,"price":"$0.98268","currency":"USD"},{"qty":2500,"price":"$0.91491","currency":"USD"},{"qty":5000,"price":"$0.88102","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9f3b3f422fbeec566534a98adcbc8ffc.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN75ALS191DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN75ALS191DR 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}}