4-Channel I2C-Bus Multiplexer

  • 3 Address Pins Allowing Up to 8 Devices on the I2C Bus
  • Power-up With All I2C Switch Channels Deselected
  • No Glitch on Power Up
  • 0 Hz to 400 kHz Clock Frequency
  • On Board Power Management
  • 0x70 I2C Start Address
  • Sale
  • Regular price $15.95

Description

The TCA9546 is a quad bidirectional I2C multiplexer, providing a single I2C Input and 4 selectable I2C outputs, controlled by the I2C bus.  On Power-up, all 4 I2C outputs are disconnected.  A 5th I2C output acts as a pass-through from the primary I2C input. The SCL/SDA upstream pair fans out to four downstream pairs, or channels.  This I2C Multiplexer is an ideal solution for speaking to our entire range of Mini Modules and I2C devices, effectively converting a single I2C port into 4 I2C ports.  The TCA9546 works at I2C bus frequencies up to 400 kHz.  The TCA9546 may be powered from the I2C bus or from the optional 12V 2.1mm barrel connector for external power.  On-board screw terminals may also be used for an external direct wired 12V power supply.

Compatibility

This is a general purpose I²C device compatible with all computing platforms and IoT technologies, including Raspberry Pi, BeagleBone, Arduino, Particle, BridgeX5, and many more.  All ControlEverything.com devices support a strict +5V I²C Bus standard.

Arduino Nano and Micro Interfaces:
Plug this Device into the Arduino Nano I²C Shield
Plug this Device into any Arduino Nano Master Device
Plug this Device into any Arduino Micro Master Device
Plug this Device into the Arduino Uno Interface Adapter

ESP8266 IoT Interfaces:
Use our ESP8266 Module and the PEI2C Interface Adapter
Use our ESP8266 Adapters for Adafruit and Huzzah

Onion Omega 1 & 2 IoT Interface:
Use our Onion Omega Adapters

Raspberry Pi Interfaces:
Use the Raspberry Pi I²C Interface Adapter
Use the Raspberry Pi 2/3 I²C Interface Adapter
Use the Raspberry Pi Zero I²C Interface Adapter

Particle IoT Interfaces: 
Plug this Device into the Particle Photon I²C Shield
Use as Expansion for any Particle Photon Device
Use as Expansion for any Particle Electron Device
Note: All devices above are compatible with Bluz Bluetooth Interface

Pycom IoT Interface:
Plug this Device into the WiPy I²C Shield

BeagleBone Interface:
Use the BeagleBone I²C Interface Adapter

Windows 8/10 PC Interface:
Use the Bridge Series Controller

Resources

Dimensions:
Datasheets
Documentation
Mechanical drawing
Wiring diagram

Power

12-Volt 1.25 Amp Regulated Switcher Supply
12 Volt 1.25 Amp Regulated Switcher Supply
Regular price $12.95
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International 12 Volt 1.25 Amp Regulated Switcher Supply
International 12 Volt 1.25 Amp Regulated Switcher Supply
Regular price $16.95
Read More