---
product_id: 528023990
title: "DollaTek TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board"
brand: "dollatek"
price: "39 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/528023990-dollatek-tca9548a-i2c-iic-multiplexer-breakout-board-8-channel-expansion
store_origin: RO
region: Romania
---

# 1.65-5.5V wide voltage range 8-channel I2C multiplexing 400KHz max clock speed DollaTek TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board

**Brand:** dollatek
**Price:** 39 Lei
**Availability:** ✅ In Stock

## Summary

> 🔗 Unlock 8x I2C power — because one bus just isn’t enough!

## Quick Answers

- **What is this?** DollaTek TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board by dollatek
- **How much does it cost?** 39 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/528023990-dollatek-tca9548a-i2c-iic-multiplexer-breakout-board-8-channel-expansion)

## Best For

- dollatek enthusiasts

## Why This Product

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

## Key Features

- • **Precision at Speed:** Supports I2C clock frequencies up to 400KHz, ensuring fast and reliable data communication for demanding applications.
- • **Customizable Addressing:** Selectable I2C addresses from 0x70 to 0x77 let you avoid address clashes and integrate multiple multiplexers effortlessly.
- • **Expand Your I2C Universe:** Seamlessly connect up to 8 devices with a single multiplexer, eliminating bus conflicts and boosting your project’s scalability.
- • **Compact & Developer-Friendly:** Breakout board design simplifies prototyping and integration, saving you time and hassle in your next innovation sprint.
- • **Flexible Voltage Compatibility:** Operates smoothly between 1.65V and 5.5V, making it perfect for diverse embedded systems and IoT setups.

## Overview

The DollaTek TCA9548A I2C Multiplexer Breakout Board expands your I2C bus by providing 8 selectable channels, supports a wide voltage range of 1.65-5.5V, and operates at speeds up to 400KHz. Its configurable I2C address range (0x70-0x77) ensures seamless integration in complex embedded systems, making it an essential tool for scalable and efficient hardware projects.

## Description

DollaTek TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board

## Features

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

## Images

![DollaTek TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board - Image 1](https://m.media-amazon.com/images/I/61850c4YrHL.jpg)

## Frequently Bought Together

- DollaTek TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board
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**Shop now:** [https://www.desertcart.ro/products/528023990-dollatek-tca9548a-i2c-iic-multiplexer-breakout-board-8-channel-expansion](https://www.desertcart.ro/products/528023990-dollatek-tca9548a-i2c-iic-multiplexer-breakout-board-8-channel-expansion)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-12*