QuickView - DS28CN01 1Kbit I²C/SMBus EEPROM with SHA-1 Engine


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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

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Status

Active: In Production.

Description

ABRIDGED DATA SHEET (PDF, 124kB)

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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.

An evaluation kit is available: DS28CN01EVKIT

Key Features Applications/Uses

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

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