Features and Benefits

  • Converts 1-Wire Communication Protocol to I2C Master I/O
    • Operates I2C Slave Peripherals over the Single-Contact, 1-Wire Interface
  • Extend I2C Communication Distance with 1-Wire Protocol
    • 100 Meters (typ) in Standard Speed for a Properly Configured Network
  • Flexible 1-Wire Slave and I2C Master Operational Modes
    • Supports 15kbps and 77kbps 1-Wire Protocol with Packetized I2C Data Payloads
    • Factory-Programmed, Unique 64-Bit 1-Wire ROM ID Provides Unalterable Serial Number to End Equipment
    • Standard 100kHz and 400kHz Communication Rates for I2C
    • I2C Clock Stretching Automatically Supported
  • Low Power Consumption
    • 0.3µA (typ) in Sleep Mode
    • 2.6mA (typ) when Operational
    • Separate Pins for Sleep and Wakeup Flexibility
    • Remote Power Controlled by an Awake Pin
    • Sleep Mode Enabled by Sleep Pin or a 1-Wire Device Command
  • Easy to Integrate
    • 3.3V(nom) Supply, Small 4mm x 4mm x 0.75mm TQFN package, -40°C to +85°C Operation
    • Evaluation HW and SW Available

Product Details

The DS28E17 is a 1-Wire slave to I2C master bridge device that interfaces directly to I2C slaves at standard (100kHz max) or fast (400kHz max). Data transfers serially by means of the 1-Wire® protocol, which requires only a single data lead and a ground return. Every DS28E17 is guaranteed to have a unique 64-bit ROM registration number that serves as a node address in the 1-Wire network. Multiple DS28E17 devices can coexist with other devices in the 1-Wire network and be accessed individually without affecting other devices. The DS28E17 allows using complex I2C devices such as display controllers, ADCs, DACs, I2C sensors, etc. in a 1-Wire environment. Each self-timed DS28E17 provides 1-Wire access for a single I2C interface.


  • Accessory Identification and Control
  • ADCs/DACs
  • Display Controllers
  • I2C Sensors

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Tools & Simulations

Software Development

Reference Designs (1)

Product Recommendations

DS28E17 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.