Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic
Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic
Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic
Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic
Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic - zdjęcie 1
Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic - zdjęcie 2
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Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic - zdjęcie 4

ISO1540 - I2C bidirectional isolator - STEMMA AT / Qwiic - Adafruit 4903

Index: ADA-19253 EAN: 5903351247672
Bidirectional I2C isolator manufactured by Adafruit. It is used in projects that require electrical separation of devices on the same bus. Equipped with ISO1540 chip, compliant with current safety standards. Fully bidirectional, supports clock frequency up to 1 MHz. Powered from 3V to 5V (supplied on both sides of the module). There is also a STEMMA QT / Qwiic connector on the module board for quick and easy isolator connection.
€11.42
€9.28 tax excl.
Delivery scheduled for 2022-02-09
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Manufacturer: Adafruit
Compatibility: Arduino Raspberry Pi

Product description: ISO1540 - I2C Isolator - STEMMA AT/Qwiic - Adafruit 4903

BidirectionalI2C isol ator manufactured by Adafruit. It is used in projects that require electrical separation of devices on the same bus. Equipped with ISO1540 chip, compliant with current safety standards. Fully bidirectional, supports clock frequency up to 1 MHz. Powered from 3V to 5V (supplied on both sides of the module). On the board of the module there is also STEMMA QT / Qwiic connector, with which you can quickly and easily connect the isolator.

Product is compatible with Arduino and Raspberry Pi.

A detailed user guide is available on the manufacturer's website, which makes it significantly easier to get started with the module.

Opis wyprowadzeń modułu izolatora.

Pinout description of the isolator module.

Pinout description

The module is equipped with leads in the form of solder fields. You should attach to them goldpin connectors included in set. The board has also STEMMA QT / Qwiic connectors which can be used to conveniently connect the module with controller module - without additional soldering.

  • VCC - power pin from 3 V to 5 V
  • GND - system ground
  • SCL - logic pin, I2C interface clock line
  • SDA - logic pin, data line of I2C interface
  • STEMMA QT / Qwiic - connection connector

Technical specifications

  • Layout: ISO1540
  • Module type: bidirectional I2C isolator
  • Power supply: from 3 V to 5 V
  • Maximum clock frequency: up to 1 MHz
  • Open drain outputs with current flow capability:
    • side 1 : 3.5 mA
    • side 2 : 35 mA
  • HBM ESD protection 4 kV on all pins (8 kV on bus pins)
  • Safety certifications:
    • 4242-VPK insulation according to DIN VDE V 0884-11: 2017-01
    • Isolation of 2500-VRMS for 1 minute in accordance with UL 1577
    • CSA approval according to IEC 60950-1 and IEC 62368-1 final standards
    • CQC basic insulation according to GB4943.1-2011
  • Terminations:
    • solder fields
    • STEMMA QT / Qwiic connectors
  • Working temperature: from -40°C to +125°C
  • Dimensions: 25,4 x 17,8 mm

Kit contents

  • Bidirectional I2C bus isolator module
  • Goldpin connectors - 2.54 mm pitch
Dwukierunkowy izolator I2C od Adafruit.

Bidirectional I2C isolator from Adafruit.

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Lichtenstein, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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