Adafruit TCA9548A 1-to-8 I2C Multiplexer Breakout
Interface Board·Adafruit·USA
Price
$6.95
Supplier
Adafruit
Country
USA
Mass
0.01 kg
Technical Details
Voltage
5 V
Protocol
I2C
Mass
0.01 kg
Specifications
| Parameter | Value |
|---|---|
| Chip | TI TCA9548A |
| Channels | 8 independent I2C buses |
| Address Range | 0x70–0x77 (via A0/A1/A2 pins) |
| Voltage | 3.3–5 V logic |
| Max Frequency | 400 kHz (fast mode) |
| Reset Pin | active-low RESET |
| Dimensions | 25.6 mm × 17.8 mm |
Used in Kits
Notes
Allows 8 identical I2C sensors (e.g., 8× BNO055 IMU chips, all at 0x28) to coexist on one I2C bus. Essential for distributed sensor arrays. 3.3 V and 5 V safe via onboard level shift.