---
product_id: 278762289
title: "HiLetgo TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino"
brand: "hiletgo"
price: "9147 Ft"
currency: HUF
in_stock: false
reviews_count: 5
category: "Hi Letgo"
url: https://www.desertcart.hu/products/278762289-hiletgo-tca9548a-i2c-iic-multiplexer-breakout-board-8-channel-expansion
store_origin: HU
region: Hungary
---

# Max Clock 400KHz Voltage Range 1.65-5.5V I2C Interface HiLetgo TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino

**Brand:** hiletgo
**Price:** 9147 Ft
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Elevate Your Projects with Precision!

## Quick Answers

- **What is this?** HiLetgo TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino by hiletgo
- **How much does it cost?** 9147 Ft with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/278762289-hiletgo-tca9548a-i2c-iic-multiplexer-breakout-board-8-channel-expansion)

## Best For

- hiletgo enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Voltage:** Compatible with a wide range of voltages for ultimate flexibility.
- • **Expand Your Horizons:** Unlock the potential of your Arduino with 8-channel I2C multiplexing!
- • **Seamless Integration:** Easily connect multiple devices without the hassle.
- • **Speed Meets Efficiency:** Achieve high-speed data transfer with a max clock frequency of 400KHz.
- • **Customizable Addressing:** Select from multiple I2C addresses (0x70-0x77) for tailored setups.

## Overview

The HiLetgo TCA9548A I2C Multiplexer Breakout Board is an 8-channel expansion board designed for Arduino enthusiasts. It features a selectable I2C address range of 0x70-0x77, operates within a voltage range of 1.65-5.5V, and supports a maximum clock frequency of 400KHz, making it an essential tool for complex projects requiring multiple I2C devices.

## Description

Description: You just found the perfect I2C sensor, and you want to wire up two or three or more of them to your Arduino when you realize "Uh oh, this chip has a fixed I2C address, and from what I know about I2C, you cannot have two devices with the same address on the same SDA/SCL pins!" Are you out of luck? You would be, if you didn't have this ultra-cool TCA9548A I2C 1-to-8 I2C multiplexer. Finally, a way to get up to 8 same-address I2C devices hooked up to one microcontroller - this multiplexer acts as a gatekeeper, shuttling the commands to the selected set of I2C pins with your command. Using it is fairly straight-forward: the multiplexer itself is on I2C address 0x70 (but can be adjusted from 0x70 to 0x77) and you simply write a single byte with the desired multiplexed output number to that port, and bam - any future I2C packets will get sent to that port. In theory, you could have 8 of these multiplexers on each of 0x70-0x77 addresses in order to control 64 of the same-I2C-addressed-part. Like all Adafruit breakouts, we put this nice chip on a breakout for you so you can use it on a breadboard with capacitors, and pullups and pulldowns to make usage a snap. Some header is required and once soldered in you can plug it into a solderless-breadboard. The chip itself is 3V and 5V compliant so you can use it with any logic level. Packaged included: 1* TCA9548A I2C Multiplexer Breakout board

Review: Works well
Review: Very straightforward to use

## Features

- Interface: I2C IIC
- Chip: TCA9548A
- Selectable I2C address: 0x70-0x77
- Working Voltage: 1.65-5.5V
- Max Clock Frequency: 400KHz

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | HiLetgo |
| Part Number | 3-01-1273 |
| Item Weight | 0.634 ounces |
| Package Dimensions | 3.78 x 2.24 x 0.28 inches |
| Item model number | 3-01-1273 |
| Is Discontinued By Manufacturer | No |
| Size | Small |
| Color | Purple |
| Material | FR4 |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![HiLetgo TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino - Image 1](https://m.media-amazon.com/images/I/51+Du5sRIiL.jpg)
![HiLetgo TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino - Image 2](https://m.media-amazon.com/images/I/611ZXXivfxL.jpg)
![HiLetgo TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino - Image 3](https://m.media-amazon.com/images/I/617nHuW-7jL.jpg)
![HiLetgo TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino - Image 4](https://m.media-amazon.com/images/I/61QLpT-hp4L.jpg)

## Questions & Answers

**Q: Is this compatible with a Raspberry pi?**
A: The simple answer is yes. We use it as an I2c multiplexer to access an array of magnetic sensors which cannot be assigned to different I2c addresses. Since there are two i2c channels on Raspberry Pi 3B's and 4b's, we run two different sensor arrays on a single Pi, or each array being run by its own Pi, depending on how intense the data acquisition volume is required.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well
*by A***V on 28 May 2025*



### ⭐⭐⭐⭐⭐ Very straightforward to use
*by M***J on 19 June 2018*



### ⭐⭐⭐⭐⭐ A fully fincationa I2C Mux
*by N***E on 25 January 2025*



## Frequently Bought Together

- HiLetgo PCA9548A TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board for Arduino
- ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects
- EDGELEC 120pcs Breadboard Jumper Wires 10cm 15cm 20cm 30cm 40cm 50 cm 100cm Wire Length Optional Dupont Cable Assorted Kit Male to Female Male to Male Female to Female Multicolored Ribbon Cables

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-09*