Adafruit

Adafruit TCA9548A I2C Multiplexer

Name: Adafruit TCA9548A I2C Multiplexer
Brand: Adafruit
SKU: AF2717
Price: 11.11 USD
Availability: InStock

Item No.: AF2717

HAN: 2717

EAN: 4060137024627

HS Code: 8538909189

Herkunftsland: US

Lagerstufe: Tier3

11,11 $

per pack

incl. 19% VAT plus (S)

Net: 9,34 $

Choose tax zone / country of delivery

Description
Reviews

Product 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 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.

TECHNICAL DETAILS

Datasheet, schematic, and Fritzing available in the product tutorial
Selectable I2C address 0x70-0x77
Weight: 1.8g
Product Dimensions: 30.6mm x 17.6mm x 2.7mm / 1.2" x 0.7" x 0.1"

Write the first review for this item and help others make a purchase decision!

Manufacturer according to GPSR
Adafruit Industries LLC, Varick St. 150, 10013 New York, New York, Vereinigte Staaten, [email protected], https://eckstein-shop.de/Adafruit-Marken