8-Channel I2C Multiplexer TCA9548A
With this I2C multiplexer, you can easily connect and operate multiple I2C sensors with the same address to your microcontroller.
The I2C address of the multiplexer can be changed via the A0-A2 inputs, so you can connect up to eight TCA9548A to a microcontroller.
TCA9548A connection assignment:
- VIN, GND: Operating voltage 1.65 to 5.5V
- SCL, SDA: Serial Clock and Serial Data Bus
- RST: Reset input
- A0-A2: I2C address inputs
- SCx, SDx: Serial Clock and Serial Data of channels 0 to 7
Addressing I2C of TCA9548A
Here's a guide to setting the I2C address (H= connected with Vin, L= connected with GND). If nothing is connected, the default address is 0x70.
| A0 | A1 | A2 | Hex |
| L | L | L | 0x70 |
| L | L | H | 0x71 |
| L | H | L | 0x72 |
| L | H | H | 0x73 |
| H | L | L | 0x74 |
| H | L | H | 0x75 |
| H | H | L | 0x76 |
| H | H | H | 0x77 |
Documentation:
Technical Details:
- Chip: TCA9548A
- Operating voltage: 1.65 to 5.5V
- I2C standard address: 0x70
- I2C address range: 0x70 – 0x71
- Weight: 3.8g
- Dimension: 32 x 22 x 3mm
Package Includes:
- 1x 8-Channel I2C multiplexer TCA9548A
- 1x terminal strip set
8-Channel I2C Multiplexer TCA9548A
- Brand: purecrea
- Product Code: 421424
- Availability: In Stock
-
CHF5,90
- Ex Tax: CHF5,46
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Tags: I2C, Multiplexer, TCA9548A, MUX, Multiplexer, 8-Channel, 3.3V, 5V, Breakout, Module, TCA9548