{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LSF0108RKSR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LSF0108RKSR","canonicalUrl":"https://icboms.com/texas-instruments/LSF0108RKSR","factsUrl":"https://icboms.com/api/mcp/products/LSF0108RKSR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LSF0108RKSR, voltage level translator, bidirectional, 8 channels, auto-direction sensing, open drain / push-pull output, 20-VFQFN exposed pad, tape and reel.","salesMarkdown":"## 8-channel bidirectional level shifter with auto-direction sensing The Texas Instruments LSF0108RKSR is an 8-channel bidirectional voltage-level translator that handles open-drain and push-pull outputs across a split-supply interface — VCCA from 0.95 V to 4.5 V, VCCB from 1.8 V to 5.5 V. Auto-direction sensing means the part detects the data direction on each channel without a DIR pin, so a single device bridges buses like a 1.2-V sensor to a 3.3-V MCU or a 1.8-V memory to a 5-V legacy peripheral. ## Supply-rail mapping and temperature grade VCCA accepts 0.95 V to 4.5 V, VCCB accepts 1.8 V to 5.5 V — the lower rail must always be at or below VCCB, so this part suits any combination where the A-side bus is the lower-voltage domain. Rated for -40°C to 125°C ambient, the LSF0108RKSR covers industrial and automotive under-hood temperature profiles without derating. ## Package and PCB integration Housed in a 20-VFQFN exposed-pad package (4.5 mm × 2.5 mm body), the LSF0108RKSR requires a thermal-land pattern on the PCB to draw heat from the die — the exposed pad must be soldered to a copper plane, not left floating. Supplied on tape and reel or cut tape, the part is surface-mount ready for high-volume reflow assembly.","metaTitle":"TI LSF0108RKSR Voltage Level Translator, 8-Ch, 20-VQFN","metaDescription":"Texas Instruments LSF0108RKSR bidirectional voltage-level translator, 8 channels, auto-direction sensing, 0.95-4.5V VCCA / 1.8-5.5V VCCB, -40 to 125°C, 20-VQFN.","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)","Features":"Auto-Direction Sensing","Output Type":"Open Drain, Push-Pull","Channel Type":"Bidirectional","Mounting Type":"Surface Mount","Package / Case":"20-VFQFN Exposed Pad","Voltage - VCCA":"0.95 V ~ 4.5 V","Voltage - VCCB":"1.8 V ~ 5.5 V","Translator Type":"Voltage Level","lifecycle_stage":"eol_hot","Number of Circuits":"1","Channels per Circuit":"8","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"20-VQFN (4.5x2.5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.49","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.49000","currency":"USD"},{"qty":10,"price":"$1.33300","currency":"USD"},{"qty":25,"price":"$1.26560","currency":"USD"},{"qty":100,"price":"$1.03970","currency":"USD"},{"qty":250,"price":"$0.97184","currency":"USD"},{"qty":500,"price":"$0.85884","currency":"USD"},{"qty":1000,"price":"$0.67804","currency":"USD"},{"qty":3000,"price":"$0.63284","currency":"USD"},{"qty":6000,"price":"$0.60119","currency":"USD"},{"qty":15000,"price":"$0.57859","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5aba380391ed4592b4c1dcf4f0e16303.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional alternative to the LSF0108RKSR?","answer":"The TPS65680RSNT is a bidirectional voltage-level translator with 18 channels, but it operates from -40°C to 85°C — a narrower temperature range than the LSF0108RKSR's -40°C to 125°C. The LSF0108RKSR is the better fit for extended-temperature designs."},{"question":"What package does the LSF0108RKSR come in?","answer":"The LSF0108RKSR is supplied in a 20-VFQFN exposed-pad package (4.5 mm × 2.5 mm body), available on tape and reel or cut tape."},{"question":"Does the LSF0108RKSR require a direction-control pin?","answer":"No. The LSF0108RKSR features auto-direction sensing, so it detects the data direction on each channel independently — no DIR pin is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LSF0108RKSR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LSF0108RKSR 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}}