DS28E39Q+U

DS28E39Q+U is a DeepCover secure ECDSA bidirectional authenticator with ChipDNA PUF protection. It is an ECDSA public-key-based bidirectional secure authenticator that incorporates ChipDNA™ feature, a physically unclonable function (PUF) to provide a cost-effective solution with the ultimate protection against security attacks. Using the random variation of semiconductor device characteristics that naturally occur during wafer fabrication, the ChipDNA circuit generates a unique output value that is repeatable over time, temperature, and operating voltage. Attempts to probe or observe ChipDNA operation modify the underlying circuit characteristics, preventing the discovery of the unique value used by the chip cryptographic functions. Applications include authentication of medical sensors and tools, secure management of limited-use consumables, IoT node authentication, peripheral authentication, reference design license management, printer cartridge identification and authentication.

• Robust countermeasures protect against security attacks
• Patented physically unclonable function secures device data
• Actively monitored die shield detects and reacts to intrusion attempts
• All stored data cryptographically protected from discovery
• ECDSA authenticated R/W of stored data and counter
• 17-bit one-time settable, non-volatile decrement-only counter with authenticated read
• 2Kbits of EEPROM for user data, key, control registers, and certificate
• Unique and unalterable factory programmed 64-bit identification number (ROM ID)
• 6 TDFN package
• Temperature range from -40°C to +85°C

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