DS28E17:1-Wire®-to-I2C Master Bridge

Extend I2C Slave Peripheral Communication Distance up to 100m

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.

Key Features
  • 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
    • Typically 100meters 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
DS28E17: Typical Operating Circuit
DS28E17: Typical Operating Circuit
Applications/Uses
  • Accessory Identification and Control
  • ADCs/DACs
  • Display Controllers
  • I2C Sensors
DataSheet
titleDownload file
DS28E17 Data SheetDS28E17.pdf
Parametrics
Part NumberFunctionsVSUPPLY
(V)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
See Notes
DS28E171-Wire Bridge2.45 to 3.6TQFN/16-40 to +85$2.01 @1k
Design kits & evaluation modules
Quality and Environmental Data
Related Products
  • DS2484:Single-Channel 1-Wire Master with Adjustable Timing and Sleep Mode
  • DS2482-800:8-Channel 1-Wire Master
  • DS2480B:Serial to 1-Wire Line Driver
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
DS28E17Q+ActiveTQFN,;16 pin;16.8 mm²-40°C to +85°CLead Free
DS28E17Q+TActiveTQFN,;16 pin;16.8 mm²-40°C to +85°CLead Free
DS28E17.pdf DS28E17
DS28E17.pdf DS28E17
DS28E17.pdf DS28E17
Extending I2C Communication Distance with the DS28E17 DS28E17
DS28E17.pdf DS28E17