Maxim Integrated's DS28E15Q+T: Secure Authenticator with 1-Wire SHA-256

The DS28E15Q+T from Maxim Integrated is a robust secure authenticator that provides a core set of cryptographic tools derived from integrated asymmetric and symmetric security functions. This device offers a cost-effective solution for preventing unauthorized or counterfeit products from functioning with your system's electronic components.

Featuring a secure SHA-256 cryptographic engine, the DS28E15Q+T is designed to implement challenge and response authentication, providing a strong defense against unauthorized access and ensuring the integrity and authenticity of the product. With its built-in 512-bit user-programmable EEPROM, this device can store sensitive data, which can be write-protected to prevent alterations after the initial programming.

The DS28E15Q+T operates over the single-contact 1-Wire interface, which requires only one port pin for communication and can be powered through the data line ('parasite power'), eliminating the need for an external power supply. This feature simplifies integration into designs with limited space and reduces the overall system's complexity and cost.

Key features of the DS28E15Q+T include:

• Secure SHA-256 symmetric key authentication
• 512 bits of user EEPROM partitioned into four pages
• User-programmable and permanently lockable EEPROM
• Minimalist 1-Wire interface for easy system integration
• High-speed and standard-speed 1-Wire communication options
• Operating range from -40°C to +85°C suitable for various environments
• Compact, lead-free (RoHS compliant) and halogen-free 6-pin TSOC package

This device is particularly suitable for applications where secure data exchange is critical, such as in accessory authentication, medical device authentication, and consumable goods protection. It ensures that only genuine components are used and helps maintain product safety and customer trust.

With the DS28E15Q+T, Maxim Integrated continues to deliver secure, reliable, and flexible solutions for your authentication needs, enabling you to protect your brand and products effectively. By incorporating this secure authenticator into your design, you can deter counterfeiting and ensure that your products perform as intended, maintaining the integrity of your supply chain.