{"product_id":"pca9546-4-channel-i2c-multiplexer-board-with-stemma-qt-qwiic-interface-for-sensor-networks","title":"PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic Interface","description":"\u003cp\u003eDiscover the PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic Interface, a standout skin care pick designed for dependable everyday performance and lasting value.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003eBrand Name: Aideepen\u003c\/p\u003e\u003cp\u003eCondition: New\u003c\/p\u003e\u003cp\u003eType: Module\u003c\/p\u003e\u003cp\u003eFeatures:\u003c\/p\u003e\u003cp\u003e1. Supports 4-channel I2C multiplexing to resolve address conflicts.\u003c\/p\u003e\u003cp\u003e2. Supports 1 master and 4 slave devices for strong scalability.\u003c\/p\u003e\u003cp\u003e3. Plug-and-play design with low-power standby mode, consuming only 1μA.\u003c\/p\u003e\u003cp\u003e4. Wide voltage support from 2.3V to 5.5V, compatible with multiple systems.\u003c\/p\u003e\u003cp\u003e5. Standard header pins and QT\/Qwiic interfaces for flexible connectivity.\u003c\/p\u003e\u003cp\u003eTechnical Specifications\u003c\/p\u003e\u003cp\u003eChip Model: PCA9546\u003c\/p\u003e\u003cp\u003eI2C Channels: 4 channels\u003c\/p\u003e\u003cp\u003eMaster I2C Address: 0x70 (default)\u003c\/p\u003e\u003cp\u003eVoltage Range: 2.3V - 5.5V\u003c\/p\u003e\u003cp\u003eMax I2C Rate: 400 kHz (Fast Mode)\u003c\/p\u003e\u003cp\u003eInterface Type: STEMMA QT \/ Qwiic + Pin Header\u003c\/p\u003e\u003cp\u003eDimensions: 25.4mm x 20.3mm\u003c\/p\u003e\u003cp\u003eFunctionality: Easily expand I2C bus capacity and resolve address conflicts! Supports 1 master and 4 slaves for efficient multi-device management. Plug-and-play compatible with Qwiic\/STEMMA QT ecosystems.\u003c\/p\u003e\u003cp\u003eCore Features:\u003c\/p\u003e\u003cp\u003e- 4 independently switchable channels\u003c\/p\u003e\u003cp\u003e- 1 I2C master device → controls 4 independent I2C slave groups\u003c\/p\u003e\u003cp\u003eResolves I2C address conflicts (e.g., connecting multiple identical sensors).\u003c\/p\u003e\u003cp\u003eHot-swap support\u003c\/p\u003e\u003cp\u003eStandby current only 1μA, energy-efficient.\u003c\/p\u003e\u003cp\u003eOperating voltage: 2.3V-5.5V, supports 3.3V\/5V systems.\u003c\/p\u003e\u003cp\u003eSTEMMA QT \/ Qwiic 4-pin interface: Solderless, quick connection to development boards\u003c\/p\u003e\u003cp\u003eStandard 2.54mm header pins: Compatible with breadboards and PCBs.\u003c\/p\u003e\u003cp\u003eApplication Scenarios:\u003c\/p\u003e\u003cp\u003eSimultaneously connect multiple identical I2C devices (e.g., OLED displays, temperature\/humidity sensors).\u003c\/p\u003e\u003cp\u003eExpand I2C interface capacity.\u003c\/p\u003e\u003cp\u003eBuild modular sensor networks (environmental monitoring, robotic perception systems).\u003c\/p\u003e\u003cp\u003eProduct List:\u003c\/p\u003e\u003cp\u003ePCA9546 Multiplexer Board × 1\u003c\/p\u003e\u003cp\u003eSingle-row header × 1 (unpopulated)\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eQ: What is the PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic?\u003c\/h4\u003e\u003cp\u003eA: The PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic is a quality skin care pick. Supports 4-channel I2C multiplexing to resolve address conflicts.\u003c\/p\u003e\u003ch4\u003eQ: How do I use the PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic?\u003c\/h4\u003e\u003cp\u003eA: The PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic is ready to use right out of the box and makes an easy addition to your skin care lineup.\u003c\/p\u003e\u003ch4\u003eQ: Why choose the PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic?\u003c\/h4\u003e\u003cp\u003eA: The PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic stands out in our skin care range — Supports 1 master and 4 slave devices for strong scalability.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic is a quality skin care pick. Supports 4-channel I2C multiplexing to resolve address conflicts.\"}}, {\"@type\": \"Question\", \"name\": \"How do I use the PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic is ready to use right out of the box and makes an easy addition to your skin care lineup.\"}}, {\"@type\": \"Question\", \"name\": \"Why choose the PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PCA9546 4-Channel I2C Multiplexer Board Stemma QT Qwiic stands out in our skin care range — Supports 1 master and 4 slave devices for strong scalability.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"Default Title","offer_id":47766611951721,"sku":"\u003cnone\u003e","price":41.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Sa4ee6df90645481b9d0298ffe79259aaK.webp?v=1783447203","url":"https:\/\/oasis-select.com\/products\/pca9546-4-channel-i2c-multiplexer-board-with-stemma-qt-qwiic-interface-for-sensor-networks","provider":"Oasis Select","version":"1.0","type":"link"}