Maxim Integrated DS28EL15Q+T Secure Authenticator

The DS28EL15Q+T from Maxim Integrated is a deep-cover secure authenticator that provides a core set of cryptographic tools derived from integrated asymmetric (ECC-P256) and symmetric (SHA-256) security functions. This robust device offers a full turnkey security solution for various applications that require stringent cryptographic security to protect data and ensure the authenticity of products or components.

With its built-in 512-bit user-programmable EEPROM, the DS28EL15Q+T allows for secure storage of certificates, data, or keys that are pertinent to the user's application. The EEPROM is segmented into four pages, and each page can be independently set with different protection modes, including write protection, read protection, and EPROM emulation, providing a versatile and secure storage solution.

The device features a unique 64-bit ROM identification number (ROM ID) that is factory-lasered into the chip, ensuring a unique identity for each device. This ID can be used as a fundamental piece of the cryptographic operations and as a means to track the device throughout its lifecycle.

The DS28EL15Q+T operates over the standard 3.3V supply voltage and is specified for the -40°C to +85°C extended industrial temperature range, making it suitable for challenging environmental conditions. The device communicates over a single-contact 1-Wire® interface, which simplifies the integration into designs that require minimal wiring and where board space is at a premium.

Applications for the DS28EL15Q+T include accessory and peripheral authentication, where it ensures only genuine products are used with the main system, and supply chain integrity, where it can verify the authenticity of products at any point during distribution. It is also ideal for embedded systems that require secure boot features and the ability to protect sensitive code or data from being tampered with or cloned.

Overall, the DS28EL15Q+T secure authenticator from Maxim Integrated represents a reliable and secure solution for protecting the integrity and authenticity of products and systems in a wide range of industries.