TCA9548A 1-to-8 I2C multiplexer

 You just found the perfect I2C sensor, and you want to wire up two or three or more of them to your when you realize


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This item: TCA9548A 1-to-8 I2C multiplexer

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PAM8403 Stereo Audio Amplifier Module
3-in-1 FT232RL USB to serial port module B type / MINI / micro three interface to UART
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SKU: TS-P802
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 TCA9458A 1-to-8 I2C Multiplexer. This hardware helps control multiple I2C devices with the same I2C address. For example, multiple OLED displays or multiple sensors like the BME28

I2C Multiplexer. The device has eight bidirectional translating switches controlled through the  I2C bus.

The SCL/SDA upstream pair fans out to eight downstream pairs or channels. Any individual SCn/SDn channel or combination of channels can be
selected, determined by the contents of the programmable control register.

These downstream channels can be used to resolve I2C slave address conflicts.

For example, if eight identical digital temperature sensors are needed in the application, one sensor can be connected at each channel: 0-7

Product Parameters
  • Chip TCA9458A or PCA9458A Depends on the Stock supply 
  • Working voltage: 1.65V~5.5V
  • IIC clock frequency: 0 ~ 400KHz
  • Working environment temperature: -40 ° C ~ 85 ° C
  • Small board size: 31.5mm x 21.4mm with two M3 mounting holes

Pin Set up Info: 

RESET, SDA, SCL, A0, A1, and A2 pins on the small board are connected to the pull一up 10K resistor; no need to connect externally

Package includes 1x TCA9548A 1-to-8 I2C multiplexer


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Development  Resources: Demo Codes, Schematics, Datasheets, etc

Instructables: TCA9548A 1-to-8 I2C multiplexer

Guide for TCA9548A I2C Multiplexer: ESP32, ESP8266, Arduino

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Weight .010 kg
Dimensions 4 × 5 × .5 cm

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