• DS28E17 1-Wire to I2C bridge breakout board with controller chip and labeled connection pads.
  • Back of DS28E17 bridge breakout showing board traces and a single row of header pins.
  • DS28E17 bridge breakout board beside a U.S. quarter for size comparison.
  • Typical operating circuit diagram for DS28E17 showing connections between a controller, bridge and I2C slave.
1 4

1-Wire To I2C Bridge DS28E17Q+ Breakout Board

1-Wire To I2C Bridge DS28E17Q+ Breakout Board

$12.00 USD
$12.00 USD
Sale Sold out
Shipping calculated at checkout.

What is it?

This DS28E17 Breakout Board is a cutting-edge solution designed to significantly extend the capabilities of I2C communication. Traditionally, I2C communication is limited by distance and can only be effectively used over short ranges. However, with the DS28E17 IC, this limitation is overcome, allowing for I2C communication to be extended for distances of typically 100 meters at standard 1-Wire speed in a properly configured network. This is a remarkable feat, especially considering that this connection uses one data wire plus a ground return.

Multiple I2C devices with the same address can be used on separate DS28E17 bridges. Each bridge has its own 64-bit ROM ID on the shared 1-Wire network. Devices connected to the same bridge still need distinct I2C addresses.

Features

  • Converts 1-Wire protocol to I2C Master I/O.
  • Enables operation of I2C slave devices over a single-contact 1-Wire interface.
  • Extends I2C communication over 1-Wire, typically 100 meters at standard speed in a properly configured network.
  • Operates in both 1-Wire slave and I2C master modes.
  • Supports 15kbps and 77kbps 1-Wire speeds with packetized I2C data.
  • Comes with a unique, unchangeable 64-bit 1-Wire ROM ID.
  • Supports standard I2C communication rates of 100kHz and 400kHz, with automatic I2C clock stretching.
  • Typical IC current: 0.3μA in sleep mode at 25°C and 2.6mA when active.
  • Designed for easy integration: 3.3V supply, compact size, and operates between -40°C to +85°C.

The breakout board has the following pinout:

  • 3V3: Power
  • SCL: Clock output to your I2C slave device
  • SDA: Bidirectional I2C data connection to your I2C device
  • AWK: This push-pull pin drives high when DS28E17 is awake and drives low when asleep. Can be used to awaken or put to sleep other devices (e.g. processor, sensor, etc) on the peripheral based on the state of DS28E17 (i.e. Sleep mode or awake).
  • IO: One Wire input from your MCU
  • GND

You can use this board with open source Arduino libraries such as: DS28E17

Dimensions: width 1.7 cm × height 0.5 cm × length 1.7 cm.

View full details