---
product_id: 236726148
title: "Qwiic Mux Breakout - 8 Channel (TCA9548A) - Easily Read Multiple sensors with The Same I2C Address Or Communicate with Multiple I2C Devices with Different addresses - Board only"
brand: "sparkfun"
price: "823696₫"
currency: VND
in_stock: true
reviews_count: 3
url: https://www.desertcart.vn/products/236726148-qwiic-mux-breakout-8-channel-tca9548a-easily-read-multiple-sensors
store_origin: VN
region: Vietnam
---

# Wide 1.65V-5.5V operating voltage range 8-channel I2C multiplexer 10 Qwiic connectors for daisy chaining Qwiic Mux Breakout - 8 Channel (TCA9548A) - Easily Read Multiple sensors with The Same I2C Address Or Communicate with Multiple I2C Devices with Different addresses - Board only

**Brand:** sparkfun
**Price:** 823696₫
**Availability:** ✅ In Stock

## Summary

> 🔀 Unlock Infinite I2C Possibilities — Never Let Address Conflicts Hold You Back!

## Quick Answers

- **What is this?** Qwiic Mux Breakout - 8 Channel (TCA9548A) - Easily Read Multiple sensors with The Same I2C Address Or Communicate with Multiple I2C Devices with Different addresses - Board only by sparkfun
- **How much does it cost?** 823696₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/236726148-qwiic-mux-breakout-8-channel-tca9548a-easily-read-multiple-sensors)

## Best For

- sparkfun enthusiasts

## Why This Product

- Trusted sparkfun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust & Reliable:** Operates flawlessly from -40°C to 85°C, perfect for demanding environments and professional-grade projects.
- • **Compact & Space-Smart:** 1mm pitch JST connectors minimize PCB footprint, giving your design a sleek, clutter-free edge.
- • **Flexible Addressing Power:** Configure up to 8 unique I2C addresses per board, enabling up to 64 multiplexed buses for ultimate device expansion.
- • **Master Your Sensor Network:** Seamlessly manage up to 8 I2C channels on a single bus, eliminating address conflicts and boosting your project’s scalability.
- • **Plug & Play Qwiic Ecosystem:** 10 Qwiic connectors including 2 pass-through ports ensure effortless daisy chaining with polarized, foolproof connections.

## Overview

The SparkFun Qwiic Mux Breakout (TCA9548A) is an 8-channel I2C multiplexer board designed to solve sensor address conflicts by allowing multiple devices with the same I2C address to communicate on a single bus. Featuring 10 Qwiic connectors for easy daisy chaining, configurable addresses for up to 64 buses, and a wide operating voltage and temperature range, it’s the perfect compact solution for scalable, professional sensor networks.

## Description

Do you have too many sensors with the same I2C address? Put them on the SparkFun Qwiic Mux Breakout to get them all talking on the same bus! The Qwiic Mux Breakout enables communication with multiple I2C devices that have the same address that makes it simple to interface with. The Qwiic Mux also has eight configurable addresses of its own, allowing for up to 64 I2C buses on a connection. To make it even easier to use this multiplexer, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system.The Qwiic Mux also allows you to change the last three bits of the address byte, allowing for eight jumper selectable addresses if you happen to need to put more than one Qwiic Mux Breakout on the same I2C port. The address can be changed by adding solder to any of the three ADR jumpers. Each SparkFun Qwiic Mux Breakout operates between 1.65V and 5.5V making it ideal for all of the Qwiic boards we produce in house.The SparkFun Qwiic connect system is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.

## Features

- Do you have too many sensors with the same I2C address? Put them on the SparkFun Qwiic Mux Breakout to get them all talking on the same bus!
- The Qwiic Mux also has eight configurable addresses of its own, allowing for up to 64 I2C buses on a connection. Also allows you to change the last three bits of the address byte, allowing for eight jumper selectable addresses if you happen to need to put more than one Qwiic Mux Breakout on the same I2C port.
- All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.
- Operating Voltage: 1.65V - 5.5V. Operating Temperature: -40 - 85° C. I2C Address: 0x70 (default) up to 0x77.
- 10x Qwiic Connectors: 2x Pass Through (Daisy Chain), 8x Channels

## Images

![Qwiic Mux Breakout - 8 Channel (TCA9548A) - Easily Read Multiple sensors with The Same I2C Address Or Communicate with Multiple I2C Devices with Different addresses - Board only - Image 1](https://m.media-amazon.com/images/I/71j3m-iEiIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ If you want to use more than one or two I2C devices, get this!
*by P***S on January 1, 2025*

SparkFun's Qwicc circuits might be a little more expensive, but they are well designed and work reliably.The TCA9548A bus expander is a must for integrating a large number of I2C devices, especially if you are using the random unknown quality off brand devices on here or other store fronts. The address is adjustable from severable solder jumpers. It has integrated pullup resistors for each channel. It works well with EspHome.I have each device on it's own bus, to avoid having bus contention issues and calculating pullup values. This doesn't come with cables, so you'll need a Qwiic cable set to work with it. I purchased a crimper and some female socket pins and removed the male pins from the cables to give myself some extra breakout cables.

### ⭐⭐⭐⭐ Plug the wired ends in by holding the board connector, not just the board
*by R***N on November 23, 2021*

The female end (mounted on the board) seems a little fragile and may have lacked enough solder. If the board connector was held against the board, it would work, otherwise it was a ghost problem (comes and go without any noticeable or visual reason)Otherwise, 5 stars.I do with they would improve the Arduino example for this board, seems unnecessarily confusing initially when it is really quit simple. Also, the example would not run on my DUE board, what the....!

### ⭐⭐⭐⭐⭐ Works great
*by T***R on October 2, 2021*

With a Qwiic cable assortment the whole project was plug&play.

## Frequently Bought Together

- SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A) - Easily Read Multiple sensors with The Same I2C Address Or Communicate with Multiple I2C Devices with Different addresses - Board only
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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-01-23*