DS28CN01

1Kbit I²C/SMBus EEPROM with SHA-1 Engine

Low-Cost, High-Security, SHA-1-Based Authentication Solution Provides Clone Prevention, IP Protection, and License Management


Please check latest availability status for a specific part variant.

Description

The DS28CN01 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the Federal Information Publications (FIPS) 180-1/180-2 and ISO/IEC 10118-3 Secure Hash Algorithm (SHA-1). The memory is organized as four pages of 32 bytes each. Data copy-protection and EPROM emulation features are supported for each memory page. Each DS28CN01 has a guaranteed unique factory-programmed 64-bit registration number. Communication with the DS28CN01 is accomplished through an industry standard I²C- and SMBus™-compatible interface. The SMBus timeout feature resets the device's interface if a bus-timeout fault condition is detected.
DS28CN01: Typical Operating Circuit DS28CN01: Typical Operating Circuit Enlarge+

Key Features

  • 1024 Bits of EEPROM Memory Partitioned Into Four Pages of 256 Bits
  • Dedicated Hardware-Accelerated SHA Engine for Generating SHA-1 MACs
  • EEPROM Memory Pages can be Individually Copy-Protected or Put Into an EPROM Mode (Program from 1 to 0 Only)
  • Write Access Requires Knowledge of the Secret and the Capability of Computing and Transmitting a 160-Bit MAC as Authorization
  • Unique, Factory-Programmed, and Tested 64-Bit Registration Number Assures Absolute Traceability Because No Two Parts are Alike
  • Endurance 200k Cycles at +25°C
  • Serial Interface User Programmable for I²C Bus and SMBus Compatibility
  • Supports 100kHz and 400kHz I²C Communication Speeds
  • 5.5V Tolerant Interface Pins
  • Operating Range: 1.62V to 5.5V, -40°C to +85°C
  • 8-Pin µSOP Package

Applications/Uses

  • Accessory and Peripheral Identification
  • Equipment Registration and License Management
  • Medical Sensor Authentication and Calibration
  • Network Node Identification
  • Printed Circuit Board Unique Serialization
  • Printer Cartridge Configuration and Monitoring
  • System Intellectual Property Protection

DSAUTHSK: Evaluation Kit for the DS28E01-100, DS28CN01, and DS2460

CAD Symbols and Footprints

  • DS28CN01U-A00+
  • DS28CN01U-A00+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    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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    Related Resources


    Belle Isle 2020
    05/29/2020 - 05/31/2020, Detroit, MI
    2020 Detroit Grand Prix - Chevrolet Detroit Grand Prix presented by Lear Fast Facts The Chevrolet Detroit Grand Prix presented by Lear was hosted on Belle Isle, May 29 - 30 2020. The event featured the cars of the NTT IndyCar Series, the IMSA WeatherTech SportsCar Championship and the Trans Am Series presented by Pirelli. The weekend is collectively referred to as the Chevrolet Detroit Grand Prix presented by Lear and it once again featured the Chevrolet Dual in Detroit IndyCar doubleheader.

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