{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCA9306DCURE4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"PCA9306DCURE4","canonicalUrl":"https://icboms.com/texas-instruments/PCA9306DCURE4","factsUrl":"https://icboms.com/api/mcp/products/PCA9306DCURE4","rawCanonicalId":null},"summary":{"shortDescription":"NXP PCA9306DCURE4, dual bidirectional voltage level translator, 1-circuit 2-channel, auto-direction sensing, open-drain/push-pull output, 1.2 V–3.3 V VCCA, 1.8 V–5.5 V VCCB, -40°C to 105°C, 8-VFSOP/8-VSSOP, Tape & Reel.","salesMarkdown":"## Dual-supply level translator — obsolete, but still specifiable The NXP PCA9306DCURE4 is a single-circuit, two-channel bidirectional voltage level translator in an 8-VFSOP (2.30 mm width) surface-mount package. Outputs can be open-drain or push-pull, covering I2C, SMBus, and one- or two-wire serial buses. NXP has marked the PCA9306DCURE4 as Obsolete. ## Auto-direction sensing — one less signal to route The auto-direction sensing is the feature that saves a GPIO pin and a trace. Older level translators like the TXB010x or 74LVC1T45 need a DIR pin driven by the host controller; the PCA9306 reads the bus direction from the pull-up state and switches transparently. This makes it a clean fit for I2C buses where the data direction alternates mid-packet, or for any bidirectional open-drain line where a dedicated direction signal would complicate the layout. VCCA accepts 1.2 V to 3.3 V; The 1.2 V floor on VCCA means this part can interface directly with the lowest modern core voltages (FPGA banks, low-voltage MCUs) without an extra regulator. The 105°C maximum covers most industrial and telecom enclosures — only extended under-hood automotive or downhole applications would need a 125°C-rated part. The 8-VFSOP package is also designated as 8-VSSOP in the supplier device code; footprint matches the standard 8-pin VSSOP land pattern.","metaTitle":"PCA9306DCURE4 Voltage Level Translator, Obsolete","metaDescription":"NXP PCA9306DCURE4 dual bidirectional voltage level translator, 1.2 V–5.5 V, auto-direction sensing, -40°C to 105°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Interface & Transceivers"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR)","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-VFSOP (0.091\\\", 2.30mm Width)","Product Status":"Obsolete","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":"8-VSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/43e17d9c17ce8c686f952c07574845d1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/PCA9306DCURE4/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for PCA9306DCURE4?","answer":"NXP has not published an official replacement order code for this specific suffix. The base product number PCA9306 covers multiple active variants in the same 8-VSSOP footprint — check NXP's latest product change notification for the current production suffix before updating a BOM."},{"question":"Does PCA9306DCURE4 support auto-direction sensing?","answer":"Yes, auto-direction sensing is a listed feature. The translator determines data-flow direction from the bus state, eliminating the need for a dedicated direction-control pin."},{"question":"What is the difference between PCA9306DCU and PCA9306DCURE4?","answer":"The suffix RE4 indicates Tape & Reel packaging. The PCA9306DCU (without RE4) typically ships in tube or bulk. Electrically and functionally the die is identical — same 8-VFSOP package, same auto-direction sensing, same voltage ranges."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/PCA9306DCURE4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/PCA9306DCURE4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:06:24.409Z","lastPublished":"2026-07-16T12:06:24.409Z","indexable":true}}