{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCA9306DCTT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"PCA9306DCTT","canonicalUrl":"https://icboms.com/texas-instruments/PCA9306DCTT","factsUrl":"https://icboms.com/api/mcp/products/PCA9306DCTT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments PCA9306DCTT, bidirectional voltage level translator, 1 circuit, 2 channels per circuit, VCCA 1.2 V ~ 3.3 V, VCCB 1.8 V ~ 5.5 V, auto-direction sensing, open drain/push-pull output, -40°C to 105°C, 8-LSSOP/8-MSOP SM8 package.","salesMarkdown":"## What this level translator does on the bus The Texas Instruments PCA9306DCTT is a single-circuit, two-channel bidirectional voltage level translator designed for open-drain and push-pull buses — essentially the I2C and SMBus translation workhorse. It auto-senses direction, so there is no DIR pin to route; the part decides which way the data flows based on the bus state. The 2.80 mm-wide 8-MSOP footprint fits tight mixed-voltage boards where a SOIC-8 would crowd the layout. ## Industrial temperature grade and environment The 105°C ceiling gives margin over the commercial 70°C limit for designs that see hot-side airflow or solar loading.","metaTitle":"PCA9306DCTT Bidirectional Voltage Level Translator","metaDescription":"Texas Instruments PCA9306DCTT bidirectional I2C level translator. VCCA 1.2V–3.3V, VCCB 1.8V–5.5V, auto-direction sensing, -40°C to 105°C, 8-MSOP.","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":"$1.1100","priceTiers":[{"qty":1,"price":"$1.11000","currency":"USD"},{"qty":10,"price":"$0.99100","currency":"USD"},{"qty":25,"price":"$0.94080","currency":"USD"},{"qty":100,"price":"$0.77280","currency":"USD"},{"qty":250,"price":"$0.72244","currency":"USD"},{"qty":500,"price":"$0.63844","currency":"USD"},{"qty":1250,"price":"$0.50403","currency":"USD"},{"qty":2500,"price":"$0.47550","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/43e17d9c17ce8c686f952c07574845d1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/PCA9306DCTT/alternatives.json"},"ai":{"faq":[{"question":"Is PCA9306DCTT suitable for bidirectional I2C level shifting?","answer":"Yes. The PCA9306DCTT is a bidirectional voltage level translator with auto-direction sensing and open-drain output capability, which is exactly what I2C bus level shifting requires. No direction control pin is needed — the part handles bus direction autonomously."},{"question":"What is the main difference between PCA9306DCTT and TXB0104?","answer":"The TXB0104 is a 4-channel auto-direction translator with push-pull output drive and a higher data rate (100 Mbps+), while the PCA9306DCTT is a 2-channel part optimized for open-drain buses like I2C. The PCA9306DCTT handles the I2C bus's wired-AND signalling correctly without an external pull-up configuration conflict — the TXB0104's edge-rate accelerator can glitch on slow I2C edges. For I2C specifically, the PCA9306 is the appropriate choice."},{"question":"Does PCA9306DCTT have a built-in direction control?","answer":"No. The PCA9306DCTT uses auto-direction sensing — it detects the bus direction from the voltage transitions on either side and enables the pass gate accordingly. There is no DIR pin."},{"question":"What is the VCC range of PCA9306DCTT?","answer":"VCCB must always be equal to or higher than VCCA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/PCA9306DCTT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/PCA9306DCTT 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}}