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1-Wire® products provide combinations of memory, mixed signal, and secure authentication functions with complete operation from a single contact serial interface. With both power and communication delivered over the serial protocol, 1-Wire devices are unmatched in their ability to provide key functions to applications where microcontroller I/O resources are constrained, or system interconnect must be minimized.

Common product features include:

  • Single Contact for Operation and Power Delivery
  • Unique & Unalterable 64bit Serial Number in Each Device
  • Multidrop Capable: Supports Multiple Devices on Single Line
  • Exceptional ESD Performance

Featured Videos


1-Wire Technology Overview - Part 2
9:44 October 10, 2019


How to Extend I2C Lines Using the DS28E17 1-Wire-to-I2C Master
4:50 November 02, 2017


1-Wire® Contact Packages
2:02 September 16, 2014


1-Wire Technology Overview - Part 1
11:47 April 19, 2018

Videos


1-Wire Technology Overview - Part 2
9:44 October 10, 2019


How to Extend I2C Lines Using the DS28E18 1-Wire-to-I2C Master
3:02 April 30, 2021


How to Extend I2C Lines Using the DS28E17 1-Wire-to-I2C Master
4:50 November 02, 2017


1-Wire® Contact Packages
2:02 September 16, 2014

Featured Products

1-Wire Host Interface Solutions

Product Features
DS2484 Converts I2C slave to 1-Wire master. Independent and flexible I2C and 1-Wire operating voltage, user programmable 1-Wire timing
DS2482-800 Converts I2C slave to 8-channels of 1-Wire master
DS2480B Converts UART to 1-Wire master. User programmable 1-Wire timing
DS1WM FPGA synthesizable 1-Wire Master

1-Wire Slave Device Solutions

Product Features
DS2401 64-Bit unique and unalterable serial number
DS2413 Two channels of GPIO capable of 28V/20mA operation
DS28E07 1Kbit EEPROM with user programmable and irreversible protection settings
DS28EC20 20Kbit EEPROM with user programmable and irreversible protection settings
DS28EA00 0.5oC accurate temperature sensor with chain-mode sequence detection
DS28E17 1-Wire to I2C master bridge with 100kHz and 400kHz I2C data rates

DS2488 1-Wire Dual-Port Link

The DS2488 is a simple bridge device that with a single dedicated contact on each side of the br...
  • Two-Contact Solution Enables Advance TWS Features
    • Small Message Exchange between a Case and Earbuds
    • High-Speed 512kbps Pass-Through Mode to Transfer Files
    • Earbud Battery Charger Power Delivery
    • Three GPIO Pins for Optional Feature Control or State Detection
  • Full Range of Capabilities for Earbud and Charging Case Detection
    • Earbud 64-Bit Identification Number (ROM ID) Readable upon Insertion
    • Operating Power Parasitically Derived from the 1-Wire IOA Line
    • Detect when in or out of a Charging Case
    • Detect a Dead Charging Case Battery
  • Minimalist Dual 1-Wire Interface Reduces Cost and Complexity
    • Single Dedicated Contact for Communication and Power
    • Arbitrated Communication between Two Host Controllers at 90kbps
    • Reads and Writes over a Wide 1.71V to 3.63V Voltage Range
  • Ideal for Battery Power Consumer Applications
    • Small, 1.6mm x 0.9mm x 0.33mm WLP with 0.4mm Ball Pitch
    • 1.71V to 3.63V Operating Voltage Range
    • High ESD Immunity of IOA Pin: ±8kV HBM (typ)
    • -40°C to +85°C Operation
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