Silicon Serial Number with VCC Input


The DS2411 silicon serial number is a low-cost, electronic registration number with external power supply. It provides an absolutely unique identity that can be determined with a minimal electronic interface (typically, a single port pin of a microcontroller). The DS2411's registration number is 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 through the Maxim 1-Wire® protocol. The external power supply is required, extending the operating voltage range of the device below typical 1-Wire devices.
DS2411: Typical Operating Circuit DS2411: Typical Operating Circuit Enlarge+

Key Features

  • Unique, Factory-Lasered and Tested 64-Bit Registration Number (8-Bit Family Code Plus 48-Bit Serial Number Plus 8-Bit CRC Tester); Guaranteed No Two Parts Alike
  • Standby Current <1µA
  • Built-In Multidrop Controller Enables Multiple DS2411s to Reside on a Common 1-Wire Network
  • Multidrop Compatible with Other 1-Wire Products
  • 8-Bit Family Code Identifies Device as DS2411 to the 1-Wire Master
  • Low-Cost TSOC, SOT23-3, and Flip-Chip Surface-Mount Packages
  • Directly Connects to a Single-Port Pin of a Microprocessor and Communicates at up to 15.4kbps
  • Overdrive Mode Boosts Communication Speed to 125kbps
  • Operating Range: 1.5V to 5.25V, -40°C to +85°C


  • Accessory/Peripheral Identification
  • Equipment Registration
  • Module Identification
  • Network-Node Identification
  • PCB Identification
  • Reference Design License Management
Part Number Memory Type Memory Size Bus Type Real Time Clock Pwr. Cap Pckg. GPIO VSUPPLY
min max See Notes
DS2411  ROM 64bit x 1 1-Wire No No No 1.5 5.25 $0.62 @1k
See All Memory (EPROM, EEPROM, ROM, NV SRAM) (68)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


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