{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TXB0104DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TXB0104DR","canonicalUrl":"https://icboms.com/texas-instruments/TXB0104DR","factsUrl":"https://icboms.com/api/mcp/products/TXB0104DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TXB0104DR, 4-channel bidirectional voltage-level translator, 100 Mbps, auto-direction sensing, VCCA 1.2 V to 3.6 V, VCCB 1.65 V to 5.5 V, tri-state non-inverted outputs, -40°C to 85°C, 14-SOIC surface-mount package.","salesMarkdown":"## Four-channel bidirectional level shifter with auto-direction sensing The auto-direction sensing feature makes it a drop-in solution for open-drain buses like I²C (fast-mode) and push-pull interfaces such as SPI and UART, as long as the data rate stays within the 100 Mbps limit. The 100 Mbps data rate handles most board-level serial interfaces. For higher-speed buses like QSPI or SDIO at 200 Mbps, you would step up to the TXU0304BQAR, which pushes 200 Mbps but is unidirectional. ## Supply rails and signal integrity — the gotcha on auto-direction The auto-direction sensing works by detecting rising edges on one side and driving them to the other — this means the driving side must have enough drive strength to overcome the translator's internal pull-up resistors. If the source is a weak open-drain output, the edge may not slew fast enough to trigger the direction sense, and you get a corrupted level. An external pull-up on the slow side usually fixes it. It is not qualified to AEC-Q100, so for under-hood automotive or 125°C environments you would look at the CAXC4T774QBQBRQ1, which is AEC-Q100 qualified and rated to 125°C. For dual-sourcing resilience, the TXU0304BQAR is a functional alternative if you can accept unidirectional channels and a 200 Mbps ceiling — but it is not pin-for-pin compatible (different package).","metaTitle":"TI TXB0104DR Voltage-Level Translator, 4-Ch Bidirectional","metaDescription":"Texas Instruments TXB0104DR bidirectional voltage-level translator with auto-direction sensing, 100 Mbps data rate, VCCA 1.2-3.6 V, VCCB 1.65-5.5 V, -40 to","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Auto-Direction Sensing","Data Rate":"100Mbps","Output Type":"Tri-State, Non-Inverted","Channel Type":"Bidirectional","Input Signal":"-","Mounting Type":"Surface Mount","Output Signal":"-","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","Voltage - VCCA":"1.2 V ~ 3.6 V","Voltage - VCCB":"1.65 V ~ 5.5 V","Translator Type":"Voltage Level","lifecycle_stage":"eol_hot","Number of Circuits":"1","Base Product Number":"TXB0104","Channels per Circuit":"4","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"14-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1900","priceTiers":[{"qty":1,"price":"$1.19000","currency":"USD"},{"qty":10,"price":"$1.06300","currency":"USD"},{"qty":25,"price":"$1.00880","currency":"USD"},{"qty":100,"price":"$0.82880","currency":"USD"},{"qty":250,"price":"$0.77476","currency":"USD"},{"qty":500,"price":"$0.68466","currency":"USD"},{"qty":1000,"price":"$0.54052","currency":"USD"},{"qty":2500,"price":"$0.45900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c98cf2dc6bf614899e44e306393cd5f7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TXB0104DR/alternatives.json"},"ai":{"faq":[{"question":"Is TXB0104DR compatible with 5V logic?","answer":"Yes, when VCCB is set to 5 V (within its 1.65 V to 5.5 V range), the TXB0104DR can translate from a lower-voltage domain (e.g., 1.8 V or 3.3 V on VCCA) to 5 V logic on the VCCB side, and bidirectionally back."},{"question":"What is the difference between TXB0104DR and TXS0104E?","answer":"Both are 4-channel bidirectional translators, but the TXS0104E is optimized for open-drain applications with stronger pull-up structures, while the TXB0104DR targets push-pull interfaces. The TXB0104DR also supports a wider VCCB range (up to 5.5 V vs. 3.6 V on the TXS0104E)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TXB0104DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TXB0104DR 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}}