DS2401
RECOMMENDED FOR NEW DESIGNSSilicon Serial Number
Part Details
- 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
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
Documentation
Data Sheet 1
Reliability Data 1
Application Note 4
Design Note 2
Technical Articles 17
3rd Party Solutions 1
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
Socket Boards for Evaluating 1-Wire Devices
Resources
Socket Boards for Evaluating 1-Wire Devices
Socket Boards for Evaluating 1-Wire Devices
1-Wire Device Evaluation Kit
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