8-Channel I2C Switch TCA9548A

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File:TArduinoTCA9548A.png

Summary

8-channel I2C switch enabling multiple I2C devices to share a single bus with individual channel selection.

Description

The TCA9548A component is an I2C switch that allows up to 8 I2C devices to share a single I2C bus. Each channel can be individually selected and controlled, preventing address conflicts and enabling efficient bus management. The switch features low standby current, power-on reset function, and supports both standard and fast mode I2C protocols. Typical applications include multi-sensor systems, display multiplexing, and complex I2C bus architectures.

Diagram:

Properties

  • Address – I2C device address (Default: 0x70).
  • Name – Component identifier (Default: I2CSwitch).

Pins

Output Pins

  • Control (i2c) – I2C communication pin.

Input Pins

  • I2C 0 (i2c) – Channel 0 I2C output.
  • I2C 1 (i2c) – Channel 1 I2C output.
  • I2C 2 (i2c) – Channel 2 I2C output.
  • I2C 3 (i2c) – Channel 3 I2C output.
  • I2C 4 (i2c) – Channel 4 I2C output.
  • I2C 5 (i2c) – Channel 5 I2C output.
  • I2C 6 (i2c) – Channel 6 I2C output.
  • I2C 7 (i2c) – Channel 7 I2C output.

Categories

  • File:I2C.png – I2C communication interface components.
  • File:Switch.png – Switching and multiplexing components.
  • – Signal multiplexing components.
  • File:Interface.png – Bus interface components.
  • – Communication protocol components.
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