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Lead expander - 4-channel - with I2C multiplexer - PCA9546 - Adafruit 5663
A multiplexer manufactured by Adafruit and equipped with the PCA9546 chip, which is a replacement for the popular TCA9548A chip. The module allows you to connect up to 4 separate I2C digital buses to one microcontroller interface. The address of the I2C bus occupied by the multiplexer is 0x70 , it can also be configured in the range from 0x70 to 0x77 .
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Product description: Leads expander - 4-channel - with I2C multiplexer - PCA9546 - Adafruit 5663
A multiplexer manufactured by Adafruit , equipped with the PCA9546 chip , which is a replacement for the popular TCA9548A chip . The module allows you to connect up to 4 separate I2C digital buses to one microcontroller interface. The I2C bus address occupied by the multiplexer is 0x70 , it can also be configured in the range from 0x70 to 0x77 using jumpers located at the back of the module. The leads are solder pads, evenly spaced on both sides of the board, to which the connectors included in the set should be soldered.
Leads expander - 4-channel - with I2C multiplexer - PCA9546 - Adafruit 5663.
Botland is an official distributor of Adafruit electronics. These dependable American solutions cover sensors, controllers, Arduino shields, educational systems, smart building and a wide range of accessories. The Botland range holds original Adafruit products only.
Example connection diagram. The subject of the sale is only the expander of pins - Raspberry Pi, wires, breadboard and peripherals must be purchased separately.
Connection diagram and pin description
The pins of the module are solder pads to which the included goldpin connectors should be soldered. Then connect the outputs according to the relations below:
- VIN - 3 V power pin (red wire)
- GND - system ground (black wire)
- SCL - clock line of the I2C bus (yellow wire)
- SDA - I2C bus data line (blue wire)
Product compatible with Arduino and Raspberry Pi!
The manufacturer has prepared a user's guide , which contains a detailed description of the pins and sample program code - check it out!
Module technical specification
- Type: lead expander with multiplexer
- Built-in chip: PCA9546
- Number of channels: 4
- Communication interface: I2C bus
- Bus address: 0x70, adjustable from 0x70 to 0x77
- Supply voltage: 3 V to 5 V
- Leads: solder pads
- Board dimensions: 20.5 x 17.7 x 2.6 mm
- Weight: 2.3g
Kit contents
- Leads expander - 4-channel - with I2C multiplexer - PCA9546
- Goldpin strip 1x16 - raster 2.54 mm
Components included in the set.
Useful links
| Name | Value |
|---|---|
| Channels | 4 |
| Interface | I2C |
| Sensor - type | multiplexer |
| Width | 7.7 cm |
| Height | 11 cm |
| Depth | 0.5 cm |
| Weight | 0.004 kg |
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The full delivery terms are on the page Delivery and payment.
30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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Instructions and documents
GPSR data
Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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