Overview
Features and Benefits
- Guaranteed Unique 64-Bit ROM ID Chip for Absolute Traceability
- Unique, 64-Bit Registration Number (8-BitFamily 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
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 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.
Applications
- Equipment Registration
- Network-Node Identification
- PCB Identification
- Reference Design License Management
Product Categories
Product Lifecycle
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 (4)
Documentation & Resources
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DS2401: Silicon Serial Number Data Sheet (Rev. 1)2/8/2022PDF465K
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DS2401 Reliability Data1/12/2023PDF19K
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Maxim Wafer-Level Package Assembly Guide11/12/2004
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1-Wire Search Algorithm3/28/2002
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Creating Global Identifiers Using 1-Wire® Devices1/21/2002
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Reading and Writing 1-Wire® Devices Through Serial Interfaces3/29/2001
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NEW
Create a 1-Wire Master with Xilinx PicoBlaze2/27/2023
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NEW
Advanced 1-Wire Network Driver2/14/2023
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Secure Authentication for Medical Disposables4/5/2019
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How to Build a 1-Wire® Evaluation Kit5/14/2012
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Injection Molding an IC into a Connector or Consumable Item8/3/2010
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Easily Add Memory, Security, Monitoring, and Control to Medical Sensors and Consumables5/10/2010
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White Paper 2: Using the 1-Wire® Public Domain Kit7/16/2008
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1-Wire Software Resource Guide Device Description7/8/2008
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Understanding Flip-Chip and Chip-Scale Package Technologies and Their Applications4/18/2007
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Selecting a Serial Bus1/30/2007
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Using a UART to Implement a 1-Wire Bus Master9/10/2002
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White Paper 5: Using 1-Wire APIs for Data Sheet Commands6/7/2002
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1-Wire Communication Through Software5/30/2002
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Using the DS2480B Serial 1-Wire® Line Driver3/12/2002
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Printed Circuit Board Identification Using 1-Wire® Products12/26/2001
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Guidelines for Reliable Long Line 1-Wire Networks11/16/2001
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Understanding and Using Cyclic Redundancy Checks with Maxim 1-Wire and iButton Products3/29/2001
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
Support & Discussions
DS2401 Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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List Pricing
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Lead Times
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Sampling
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Evaluation Boards
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Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.