The DS28E04-100 is a 4Kb Protected 1-Wire EEPROM with SHA-256 Authentication. This device combines EEPROM memory, a SHA-256 authentication engine, and a unique 64-bit ROM identification number into a single chip to create a secure memory solution.

Applications:

• Secure Storage
• Authentication
• Sensor Calibration
• Electronic Accessories
• Medical Devices
• Printer Cartridges

Features:

• 4Kb EEPROM memory (128 pages of 32 bytes each)
• SHA-256 Engine for Authentication
• Unique 64-Bit ROM ID
• 1-Wire Interface for Communication
• Operating temperature range of -40°C to +85°C

Benefits:

• Provides secure data storage with strong SHA-256 authentication
• Enables secure system integration
• Prevents cloning and counterfeiting of accessories and consumables.
• Simplifies design with a single-wire interface

The DS28E04-100's combination of secure memory and SHA-256 authentication makes it ideal for applications requiring high security. It is commonly used in electronic accessories to prevent unauthorized use or copying, as well as in medical devices and other sensitive applications where data integrity and authenticity are critical. The device communicates over the 1-Wire protocol, requiring only a single data line for communication and power.