{"title":"TCA9548A I2C Multiplexer","handle":"tca9548a-i2c-multiplexer","url":"/products/tca9548a-i2c-multiplexer","description":"The TCA9548A 1-to-8 I2C multiplexer solves the common problem of needing multiple I2C devices with the same address on a single bus. It acts as a gatekeeper, routing I2C traffic to any of its eight downstream channels on command.\n\nSimply write a single byte to the multiplexer's I2C address (default 0x70, configurable 0x70–0x77) to select which channel receives subsequent I2C communication. With up to 8 multiplexers on a single bus, you can theoretically address 64 identical I2C devices.\n\nKey Features\n\n\n8 I2C Channels – Connect up to 8 same-address devices to one bus\n\nConfigurable Address – Set from 0x70 to 0x77 for up to 8 multiplexers per bus\n\n3.3V and 5V Compatible – Works with any logic level\n\nBreadboard Friendly – Breakout board with capacitors and pull-ups included\n\nSimple Control – Single byte write to select the active channel\n\n\nSpecifications\n\n\nIC: TCA9548A\n\nI2C Channels: 8\n\nDefault Address: 0x70 (configurable 0x70–0x77)\n\nLogic Level: 3.3V and 5V compatible\n\n\nIdeal For\n\nUsing multiple identical I2C sensors on one bus\nExpanding I2C address space\nMulti-sensor Arduino and Raspberry Pi projects\nIsolating I2C bus segments\n\n\n\nNote: Header pins require soldering (not included).\n\n\nPackage Contents\n\n1× TCA9548A I2C Multiplexer Breakout Board\n\n\nResources\n\nTCA9548A Multiplexer Tutorial\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":9752,"title":"Default Title","sku":"AF-2717","price":14.64,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}