It appears you have JavaScript disabled within your browser. Some functions on this page will not work unless you log in.

Return to Search Results

See an Error?

U040-B-V21

Name: M5Stack U040-B-V21
Brand: M5Stack
SKU: 170-U040-B-V21
Price: 5.95 USD
Availability: InStock

Images are for reference only
See Product Specifications

Mouser No:

170-U040-B-V21

Mfr. No:

U040-B-V21

Mfr.:

M5Stack

Description:

Interface Modules I2C Hub 1 to 6 Expansion Unit v2.1 w/ DIP Switch (PCA9548A)

Lifecycle:

New Product:

New from this manufacturer.

Datasheet:

U040-B-V21 Datasheet (PDF)

ECAD Model:

Download the free Library Loader to convert this file for your ECAD Tool. Learn more about the ECAD Model.

More Information

Learn more about M5Stack U040-B-V21

In Stock: 97

Stock:: 97

Can Dispatch Immediately

An unexpected error occurred. Please try again later.
On Order:: 75

Expected 2026/07/22

80

Expected 2026/08/03
Factory Lead Time:: 7

Weeks Estimated factory production time for quantities greater than shown.

Enter Quantity:

Minimum: 1 Multiples: 1

Unit Price:

$-.--

Ext. Price:

$-.--

Est. Tariff:

Pricing (USD)

Qty.	Unit Price	Ext. Price
	$5.95	$5.95

.hidden-for-nojs { display: none; } .pull-right-nojs { justify-content: flex-end; }

Product Attribute	Attribute Value	Select Attribute
Manufacturer:	M5Stack
Product Category:	Interface Modules
RoHS:
Product:	Interface Modules
Type:	Multiplexer Unit
Number of Channels/Ports:	6 Port
Interface Type:	I2C
Minimum Operating Temperature:	0 C
Maximum Operating Temperature:	+ 40 C
Brand:	M5Stack
Dimensions:	48 mm x 24 mm x 12 mm
Product Type:	Interface Modules
Factory Pack Quantity:	1
Subcategory:	Embedded Solutions
Unit Weight:	7.100 g

Products found:

To show similar products, select at least one checkbox

Select at least one checkbox above to show similar products in this category.

Attributes selected: 0

Filter Document:

Datasheet

U040-B-V21 Datasheet (PDF)

Compliance Codes

USHTS:: 8537109170
JPHTS:: 853710000
ECCN:: EAR99

Origin Classifications

Country of Origin:: China
Assembly Country of Origin:: Not available
Country of Diffusion:: Not available

The country is subject to change at the time of shipment.

I2C Hub 1 to 6 Expansion Unit

M5Stack I²C Hub 1 to 6 Expansion Unit expands a single I²C HY2.0-4P interface and connects up to 6 I²C channels. This flexible solution allows slave devices with the same I²C address to be mounted (by polling control the different channels to achieve in-device coexistence). The I²C Hub 1 to 6 Expansion Unit offers an embedded PCA9548AP-I2C multi-channel switch IC and two LEGO compatible holes.

Unit PaHub v2.1 I2C Interface Module

M5Stack Unit PaHub v2.1 I²C Interface Module features a built-in PCA9548AP chip to expand a single I²C interface into six channels. This interface module provides excellent flexibility and scalability in parallel I²C device usage scenarios. This module features an onboard DIP switch for I²C address selection, I²C HY2.0-4P PORTA expansion, and six extended Grove ports. The PaHub v2.1 interface module supports multiple-unit nesting and effectively resolves I²C device address conflicts. This interface module is suitable for applications with multiple I²C devices.