{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCA9306DCTR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"PCA9306DCTR","canonicalUrl":"https://icboms.com/texas-instruments/PCA9306DCTR","factsUrl":"https://icboms.com/api/mcp/products/PCA9306DCTR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments PCA9306DCTR, bidirectional voltage-level translator, 1-circuit 2-channel, VCCA 1.2V–3.3V, VCCB 1.8V–5.5V, auto-direction sensing, open-drain/push-pull output, SM8 package, -40°C to 105°C.","salesMarkdown":"The Texas Instruments PCA9306DCTR is a single-circuit, two-channel bidirectional voltage-level translator designed for open-drain and push-pull applications. ## Supply rails and translation range The part does not require a separate bias supply — it uses the VCCA rail as the reference for the low-voltage side. A common pairing is 1.8 V VCCA with 3.3 V VCCB for FPGA-to-peripheral translation, or 3.3 V VCCA with 5 V VCCB for legacy 5 V logic. Because the translator is passive when the bus is idle (the pass-gate is off), quiescent current is negligible — the only draw is the pull-up resistors on each side. ## Auto-direction sensing — no DIR pin needed The auto-direction sensing means the PCA9306DCTR does not need a GPIO to steer data flow. The internal architecture detects which side is driving and enables the pass-gate accordingly. For a two-wire bus like I²C, this eliminates a control line and simplifies the firmware — the MCU just writes and reads the bus as usual. The output type is open-drain or push-pull, so it works with both wired-AND buses and standard push-pull interfaces. The PCA9306DCTR is supplied in an 8-LSSOP / 8-MSOP package with a 2.80 mm body width. The supplier device package is SM8.","metaTitle":"PCA9306DCTR Voltage Level Translator, 1.2V–5.5V","metaDescription":"TI PCA9306DCTR bidirectional voltage-level translator, 1.2V–3.3V VCCA, 1.8V–5.5V VCCB, auto-direction sensing, SM8 package, -40°C to 105°C. Active, RoHS3.","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":"-","Output Type":"Open Drain, Push-Pull","Channel Type":"Bidirectional","Input Signal":"-","Mounting Type":"Surface Mount","Output Signal":"-","Package / Case":"8-LSSOP, 8-MSOP (0.110\\\", 2.80mm Width)","Product Status":"Active","Voltage - VCCA":"1.2 V ~ 3.3 V","Voltage - VCCB":"1.8 V ~ 5.5 V","Translator Type":"Voltage Level","lifecycle_stage":"eol_hot","Number of Circuits":"1","Base Product Number":"PCA9306","Channels per Circuit":"2","Operating Temperature":"-40°C~105°C(TA)","Supplier Device Package":"SM8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.52020","priceTiers":[{"qty":5,"price":"$0.52020","currency":"USD"},{"qty":50,"price":"$0.41803","currency":"USD"},{"qty":150,"price":"$0.37431","currency":"USD"},{"qty":500,"price":"$0.31969","currency":"USD"},{"qty":3000,"price":"$0.26831","currency":"USD"},{"qty":6000,"price":"$0.25369","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/43e17d9c17ce8c686f952c07574845d1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/PCA9306DCTR/alternatives.json"},"ai":{"faq":[{"question":"Can PCA9306DCTR be used for 5V to 3.3V translation?","answer":"Yes. Set VCCA to 3.3 V and VCCB to 5 V, and the part translates bidirectionally between the two rails. The auto-direction sensing handles the data flow without a direction pin."},{"question":"What is the difference between PCA9306DCTR and PCA9306DCUR?","answer":"The PCA9306DCTR and PCA9306DCUR are functionally identical — same die, same translator core, same supply ranges. The electrical specs and footprint are the same."},{"question":"Does PCA9306DCTR support auto-direction sensing?","answer":"Yes, auto-direction sensing is a listed feature. The part detects which side is driving the bus and enables the pass-gate accordingly — no DIR pin needed."},{"question":"Is PCA9306DCTR RoHS compliant?","answer":"Yes, the PCA9306DCTR is ROHS3 compliant, meeting the latest EU restriction directive."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/PCA9306DCTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/PCA9306DCTR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-13T09:47:11.052Z","lastPublished":"2026-08-13T09:47:11.052Z","indexable":true}}