1-Wire Secure SHA-3 Authenticator

Protect Your Development Investment with Crypto-Strong Authentication and Advanced Physical Security

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The DS28E16 secure authenticator combines FIPS202-compliant Secure Hash Algorithm (SHA-3) challenge and response authentication with secured EEPROM.

The device provides a core set of cryptographic tools derived from integrated blocks including a SHA-3 engine, 256 bits of secured user EEPROM, a decrement-only counter and a unique 64-bit ROM identification number (ROM ID). The unique ROM ID is used as a fundamental input parameter for cryptographic operations and serves as an electronic serial number within the application. The device communicates over the single-contact 1-Wire® bus. The communication follows the 1-Wire protocol with the ROM ID acting as node address in the case of a multidevice 1-Wire network.
DS28E16: Typical Application Circuit DS28E16: Typical Application Circuit Enlarge+

Key Features

  • Robust Countermeasures Protect Against Security Attacks
    • All Stored Data Cryptographically Protected from Discovery
  • Efficient Secure Hash Algorithm Authenticates Peripherals
    • FIPS 202-Compliant SHA-3 Algorithm for Challenge/Response Authentication
    • FIPS 198-Compliant Keyed-Hash Message Authentication Code (HMAC)
  • Supplemental Features Enable Easy Integration into End Applications
    • 17-Bit One-Time Settable, Nonvolatile Decrement-Only Counter with Authenticated Read
    • Secure Storage for Secrets
    • 256 Bits of Secure EEPROM for User Data
    • Unique and Unalterable Factory Programmed 64-Bit Identification Number (ROM ID)
    • Advanced 1-Wire Protocol Minimizes Interface to Single Contact
    • Full-Time Overdrive Communication Speed
    • Internal Parasite Power Capacitor
    • Operating Range: 1.71V–3.63V, -40°C to +85°C
    • WLP, TDFN-EP, and SFN Packages
    • ±8kV HBM ESD Protection (typ)
    • 3.5µA (typ) Input Load Current


  • Accessory and Peripheral Secure Authentication
  • Battery Authentication and Charge Cycle Tracking
  • Medical Tools/Accessories Authentication and Calibration

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.

DS28E16EVKIT: Evaluation Kit for the DS28E16 and DS2477
Request Reliability Report for: DS28E16 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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I²C Low-Voltage SHA-3 Authenticator

  • Robust Countermeasures Protect Against Security Attacks
  • Efficient Secure Hash Algorithm Authenticates Peripherals
  • Supplemental Features Enable Easy Integration into End Applications

Type ID Title
Evaluation Board10163DS28E16EVKIT Evaluation Kit for the DS28E16 and DS2477