Overview

Features and Benefits

  • 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

Product Details

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.

Applications

  • 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

Product Categories

Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA). To request an NDA, click here.

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

Evaluation Kits (1)

Product Recommendations

DS28CN01 Companion Parts

Recommended Related Parts

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.

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