Description

Arduino

TCA9548A module

5V

Vin

GND

GND

GND

A0

GND

A1

GND

A2

A4

SDA

A5

SCL

If you need to control more than one device that uses the same I2C bus, then you need the TCA9548A I2C Multiplexer 1-to-8 Breakout Board from PMD Way (with free delivery, worldwide).

With a little simple coding the TCA9548A can direct your host microcontroller to one of eight separate I2C buses.

Furthermore, the TCA9548A can also act as a level converter, so you can have varying device bus and operating voltages between 1.8 and 5V DC.

Finally, the TCA9548A supports I2C hot-swap of bus devices, and supports the usual 400 kHz operating mode used by the majority of I2C bus devices.

Inline header pins are included, but not soldered to the board.

1-to-8 Bidirectional Translating Switches

I2C Bus and SMBus Compatible

Active-Low Reset Input

Three Address Pins, Allowing up to Eight TCA9548A Devices on the I2C Bus

Channel Selection Through an I2C Bus, In Any Combination

Power Up With All Switch Channels Deselected

Low RON Switches

Allows Voltage-Level Translation Between 1.8-V, 2.5-V, 3.3-V, and 5-V Buses

No Glitch on Power Up

Supports Hot Insertion

Low Standby Current

Operating Power-Supply Voltage Range of 1.65 V to 5.5 V

5V Tolerant Inputs

0- to 400-kHz Clock Frequency

Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

ESD Protection Exceeds JESD 22

2000-V Human-Body Model (A114-A)

200-V Machine Model (A115-A)

1000-V Charged-Device Model (C101)