Description
Expand the capabilities of your microcontroller projects with the TCA9548A I2C IIC Multiplexer Extender Board. This 8‑channel I²C switch with built‑in reset lets you connect multiple I²C devices to a single bus, eliminating address conflicts and simplifying complex sensor arrays. Perfect for Arduino, Raspberry Pi, ESP32, STM32 and other development platforms, this compact board offers reliable performance and easy integration for hobbyists and professionals alike.
Key Highlights
- 8 independent I²C channels – control up to eight devices on a single bus
- Integrated reset pin – quickly recover from bus lock‑ups without power cycling
- Wide compatibility – works seamlessly with Arduino, Raspberry Pi, ESP32, STM32, and other I²C‑capable boards
- Compact 2 × 2 cm PCB – fits into tight enclosures and breadboard setups
- Low‑power operation – 3.3 V/5 V supply with minimal quiescent current
- Robust solder pads – durable for both prototype and production use
Technical Specifications
- Chip: Texas Instruments TCA9548A
- Channels: 8 (each selectable via I²C command)
- Operating voltage: 3.3 V – 5 V
- I²C address: 0x70 (configurable via address pins)
- Reset pin: Active‑low, optional external pull‑up
- Operating temperature: –40 °C to 85 °C
- Dimensions: 20 mm × 20 mm × 1.2 mm
Why Choose This Multiplexer?
When your project outgrows a single I²C bus, the TCA9548A board offers a clean, reliable solution. Its built‑in reset function protects against bus hangs, while the 8‑channel architecture lets you scale sensor networks, LCD displays, EEPROMs, and more without redesigning your wiring. The board’s dual‑voltage support ensures compatibility with both 3.3 V and 5 V systems, making it a versatile addition to any development kit.
Easy Integration
- Plug‑and‑play with standard breadboards or custom PCBs
- Simple I²C commands to select and deselect channels
- Comprehensive datasheet and example code available for Arduino, Python (Raspberry Pi), ESP‑IDF, and STM32 HAL
Upgrade your project’s I²C architecture today with the TCA9548A I2C IIC Multiplexer Extender Board – the smart, scalable choice for modern makers and engineers.
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