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DS2401

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Silicon Serial Number

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Product Details

The DS2401 enhanced Silicon Serial Number is a low-cost, electronic registration number that provides an absolutely unique identity which can be determined with a minimal electronic interface (typically, a single port pin of a microcontroller). The DS2401 consists of a factory-lasered, 64-bit ROM that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit Family Code (01h). Data is transferred serially via the 1-Wire® protocol that requires only a single data lead and a ground return. Power for reading and writing the device is derived from the data line itself with no need for an external power source. The DS2401 is an upgrade to the DS2400. The DS2401 is fully reverse-compatible with the DS2400 but provides the additional multi-drop capability that enables many devices to reside on a single data line. The familiar TO-92, SOT-223 or TSOC package provides a compact enclosure that allows standard assembly equipment to handle the device easily.
See parametric specs for Memory (EPROM, EEPROM, ROM, NV SRAM)

Key Features

  • Guaranteed Unique 64-Bit ROM ID Chip for Absolute Traceability
    • Unique, Factory-Lasered and Tested 64-Bit Registration Number (8-Bit Family Code +48-Bit Serial Number + 8-Bit CRC Tester)
    • 8-Bit Family Code Specifies DS2401 Communications Requirements to Reader
  • Minimalist 1-Wire® Interface Lowers Cost and Interface Complexity
    • Multiple DS2401 Devices Can Reside on a Common 1-Wire Net
    • Built-In Multidrop Controller Ensures Compatibility with Other 1-Wire Net Products
    • Reduces Control, Address, Data, and Power to a Single Pin and Communicates at Up to 16.3kbps
    • Presence Pulse Acknowledges When the Reader First Applies Voltage
    • Low-Cost TO-92, SOT-223, and TSOC Surface-Mount Packages
    • TO-92 Tape-and-Reel Version with Leads Bent to 100-mil Spacing (Default) or with Straight Leads (DS2401-SL)
  • Wide Voltage and Temperature Operating Ranges Enables Robust System Performance
    • Extended 2.8V to 6.0V Range
    • Zero Standby Power Required
    • -40°C to +85°C Industrial Temperature Range

Applications/Uses

  • Equipment Registration
  • Network-Node Identification
  • PCB Identification
  • Reference Design License Management
See parametric specs for Memory (EPROM, EEPROM, ROM, NV SRAM)
Parametric specs for Memory (EPROM, EEPROM, ROM, NV SRAM)
Applications Medical Consumable ID
PCB ID and Authentication
Peripheral ID and Control
Print Cartridge Authentication
Memory Type ROM
Memory Size 64bit x 1
Bus Type 1-Wire
VSUPPLY (V) (min) 2.8
VSUPPLY (V) (max) 6
Package/Pins ST223/3
THIN WLP/4
TO92/3
TSOC/6
Budgetary
Price (See Notes) 		$0.84 @1k
See parametric specs for Memory (EPROM, EEPROM, ROM, NV SRAM)
View More

Simplified Block Diagram

DS2401: Pin Assignment DS2401: Pin Assignment Zoom icon

Technical Docs

Data Sheet Silicon Serial Number Dec 22, 2016
App Note Secure Authentication for Medical Disposables
App Note Wirelessly Powering and Accessing a 1-Wire Network
Reference Schematic Create a 1-Wire Master with Xilinx PicoBlaze
App Note Understanding the DS1WM Synthesizable 1-Wire Bus Master
Tutorial How to Build a 1-Wire® Evaluation Kit
App Note Injection Molding an IC into a Connector or Consumable Item
Tutorial Easily Add Memory, Security, Monitoring, and Control to Medical Sensors and Consumables
App Note Understanding Flip-Chip and Chip-Scale Package Technologies and Their Applications
App Note Add Control, Memory, Security, and Mixed-Signal Functions with a Single Contact
App Note Selecting a Serial Bus
Tutorial Serial Digital Data Networks
App Note Maxim Wafer-Level Package Assembly Guide
App Note White Paper 5: Using 1-Wire APIs for Data Sheet Commands
App Note White Paper 2: Using the 1-Wire® Public Domain Kit
Reference Schematic Advanced 1-Wire Network Driver
Tutorial Using a UART to Implement a 1-Wire Bus Master
App Note Using the DS2480B Serial 1-Wire® Line Driver
App Note 1-Wire Search Algorithm
App Note Creating Global Identifiers Using 1-Wire® Devices
App Note Printed Circuit Board Identification Using 1-Wire® Products
App Note 1-Wire Software Resource Guide Device Description
Tutorial Guidelines for Reliable Long Line 1-Wire Networks
App Note 1-Wire Communication Through Software
App Note Reading and Writing 1-Wire® Devices Through Serial Interfaces
App Note Understanding and Using Cyclic Redundancy Checks with Maxim 1-Wire and iButton Products

Design & Development

Click any title below to view the detail page where available.

Evaluation Board

DS9120

Description

The DS9120 family of socket boards are RJ11-to-socket boards that provide the hardware connectivity necessary to evaluate and operate 1-Wire® products in an easy-to-use PC environment. Additionally, the socket boards can be readily used with the DS9481R USB-to1-Wire adapter to create a 1-Wire PC programmer for 1-Wire EEPROM and one-time programmable (OTP)/EPROM devices.

View Details

Features

  • Fully Compliant with DS9481R USB-to-1-Wire Adapter
  • Convenient On-Board Test Points
  • Jumper Disconnect/Connect Functionality
  • Meets RJ11 1-Wire Interface Standard
  • Include Connections for Various OTP EPROM Programming

Evaluation Board

DS9120P

Description

The DS9120 family of socket boards are RJ11-to-socket boards that provide the hardware connectivity necessary to evaluate and operate 1-Wire® products in an easy-to-use PC environment. Additionally, the socket boards can be readily used with the DS9481R USB-to1-Wire adapter to create a 1-Wire PC programmer for 1-Wire EEPROM and one-time programmable (OTP)/EPROM devices.

View Details

Features

  • Fully Compliant with DS9481R USB-to-1-Wire Adapter
  • Convenient On-Board Test Points
  • Jumper Disconnect/Connect Functionality
  • Meets RJ11 1-Wire Interface Standard
  • Include Connections for Various OTP EPROM Programming

Evaluation Board

DS9120Q

Description

The DS9120 family of socket boards are RJ11-to-socket boards that provide the hardware connectivity necessary to evaluate and operate 1-Wire® products in an easy-to-use PC environment. Additionally, the socket boards can be readily used with the DS9481R USB-to1-Wire adapter to create a 1-Wire PC programmer for 1-Wire EEPROM and one-time programmable (OTP)/EPROM devices.

View Details

Features

  • Fully Compliant with DS9481R USB-to-1-Wire Adapter
  • Convenient On-Board Test Points
  • Jumper Disconnect/Connect Functionality
  • Meets RJ11 1-Wire Interface Standard
  • Include Connections for Various OTP EPROM Programming

Evaluation Board

DS9090EVKIT

$47.25

Description

The DS9090EVKIT evaluation system (EV system) consists of a DS9490+ USB-to-1-Wire®/iButton® adapter for PC connectivity, a DS9120P+ socket board with RJ11 cable, and seven different 1-Wire devices. This EV system provides the special hardware and software system to exercise the features of 1-Wire devices with memory or PIO/switches, except 1-Wire EPROM devices. (EPROM devices such as the DS2502 and DS2506 require a different adapter (DS9481R-3C7) to perform an EPROM write. This adapter can be purchased separately.) 1-Wire EPROM devices are available for sampling.

The EV system software consists of the OneWireViewer (a Java® program) that runs under Windows ® OS and comes as part of the 1-Wire drivers installation package.

View Details

Features

  • Easy Setup with USB Adapter
  • Fully Compliant with USB 2.0 Specification
  • Software Runs on Windows 8, Windows 7, WindowsVista®, and Windows XP® OS (32-Bit and 64-Bit Versions)
  • Convenient On-Board Test Points and Dual TO92 Socket
  • Standard RJ11 Connector Interfaces to DS9120 Socket Boards
  • Free Download of 1-Wire Drivers and OneWireViewer Demonstration Software
  • Compatible with Other 1-Wire Devices Purchased Separately

Reference Circuit

Create a 1-Wire Master with Xilinx PicoBlaze

Reference Circuit

Advanced 1-Wire Network Driver
/en/design/design-tools/ee-sim.html?

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal

Parameters

Parametric specs for Memory (EPROM, EEPROM, ROM, NV SRAM)
Applications Medical Consumable ID
PCB ID and Authentication
Peripheral ID and Control
Print Cartridge Authentication
Memory Type ROM
Memory Size 64bit x 1
Bus Type 1-Wire
VSUPPLY (V) (min) 2.8
VSUPPLY (V) (max) 6
Package/Pins ST223/3
THIN WLP/4
TO92/3
TSOC/6
Budgetary
Price (See Notes) 		$0.84 @1k
See parametric specs for Memory (EPROM, EEPROM, ROM, NV SRAM)

Key Features

  • Guaranteed Unique 64-Bit ROM ID Chip for Absolute Traceability
    • Unique, Factory-Lasered and Tested 64-Bit Registration Number (8-Bit Family Code +48-Bit Serial Number + 8-Bit CRC Tester)
    • 8-Bit Family Code Specifies DS2401 Communications Requirements to Reader
  • Minimalist 1-Wire® Interface Lowers Cost and Interface Complexity
    • Multiple DS2401 Devices Can Reside on a Common 1-Wire Net
    • Built-In Multidrop Controller Ensures Compatibility with Other 1-Wire Net Products
    • Reduces Control, Address, Data, and Power to a Single Pin and Communicates at Up to 16.3kbps
    • Presence Pulse Acknowledges When the Reader First Applies Voltage
    • Low-Cost TO-92, SOT-223, and TSOC Surface-Mount Packages
    • TO-92 Tape-and-Reel Version with Leads Bent to 100-mil Spacing (Default) or with Straight Leads (DS2401-SL)
  • Wide Voltage and Temperature Operating Ranges Enables Robust System Performance
    • Extended 2.8V to 6.0V Range
    • Zero Standby Power Required
    • -40°C to +85°C Industrial Temperature Range

Applications/Uses

  • Equipment Registration
  • Network-Node Identification
  • PCB Identification
  • Reference Design License Management

Description

The DS2401 enhanced Silicon Serial Number is a low-cost, electronic registration number that provides an absolutely unique identity which can be determined with a minimal electronic interface (typically, a single port pin of a microcontroller). The DS2401 consists of a factory-lasered, 64-bit ROM that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit Family Code (01h). Data is transferred serially via the 1-Wire® protocol that requires only a single data lead and a ground return. Power for reading and writing the device is derived from the data line itself with no need for an external power source. The DS2401 is an upgrade to the DS2400. The DS2401 is fully reverse-compatible with the DS2400 but provides the additional multi-drop capability that enables many devices to reside on a single data line. The familiar TO-92, SOT-223 or TSOC package provides a compact enclosure that allows standard assembly equipment to handle the device easily.

Simplified Block Diagram

DS2401: Pin Assignment DS2401: Pin Assignment Zoom icon

Technical Docs

Data Sheet Silicon Serial Number Dec 22, 2016
App Note Secure Authentication for Medical Disposables
App Note Wirelessly Powering and Accessing a 1-Wire Network
Reference Schematic Create a 1-Wire Master with Xilinx PicoBlaze
App Note Understanding the DS1WM Synthesizable 1-Wire Bus Master
Tutorial How to Build a 1-Wire® Evaluation Kit
App Note Injection Molding an IC into a Connector or Consumable Item
Tutorial Easily Add Memory, Security, Monitoring, and Control to Medical Sensors and Consumables
App Note Understanding Flip-Chip and Chip-Scale Package Technologies and Their Applications
App Note Add Control, Memory, Security, and Mixed-Signal Functions with a Single Contact
App Note Selecting a Serial Bus
Tutorial Serial Digital Data Networks
App Note Maxim Wafer-Level Package Assembly Guide
App Note White Paper 5: Using 1-Wire APIs for Data Sheet Commands
App Note White Paper 2: Using the 1-Wire® Public Domain Kit
Reference Schematic Advanced 1-Wire Network Driver
Tutorial Using a UART to Implement a 1-Wire Bus Master
App Note Using the DS2480B Serial 1-Wire® Line Driver
App Note 1-Wire Search Algorithm
App Note Creating Global Identifiers Using 1-Wire® Devices
App Note Printed Circuit Board Identification Using 1-Wire® Products
App Note 1-Wire Software Resource Guide Device Description
Tutorial Guidelines for Reliable Long Line 1-Wire Networks
App Note 1-Wire Communication Through Software
App Note Reading and Writing 1-Wire® Devices Through Serial Interfaces
App Note Understanding and Using Cyclic Redundancy Checks with Maxim 1-Wire and iButton Products

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal