Maxim Integrated DS28E02 1Kb Protected 1-Wire EEPROM with SHA-1 Engine

The Maxim Integrated DS28E02 is a highly secure, 1Kb EEPROM memory device that integrates a SHA-1 hash-based message authentication code (HMAC) engine, providing a robust solution for secure data storage and authentication in a variety of applications. Designed with a focus on security, this device utilizes the 1-Wire® interface, allowing for simple and efficient serial communication with a host controller using a single data line plus ground.

Key Features:

• Secure Memory Storage: The DS28E02 offers 1Kb of EEPROM memory, partitioned into four pages of 256 bits, which is ideal for storing sensitive data such as cryptographic keys, configuration settings, or device identity information.
• SHA-1 Authentication: The integrated SHA-1 engine provides a high level of security by generating HMACs for data authentication, ensuring that stored data has not been tampered with and is authentic when read back.
• Write Protection: The device features user-programmable write protection for each memory page, allowing for the creation of both write-once and multiple-times writable storage segments.
• Challenge-and-Response Authentication: The DS28E02 supports challenge-and-response authentication, which is essential for verifying the authenticity of a device or data in a secure system.
• Unique 64-Bit Serial Number: Each DS28E02 device has a factory-programmed, unique 64-bit serial number, which can be used as a key identifier in a secure authentication system.

Applications:

• Embedded Systems Security
• Accessory Identification
• Secure Data Storage
• Medical Device Authentication
• Aftermarket Product Protection

The DS28E02 is ideal for applications requiring a combination of data integrity, security, and flexibility. With its compact size and low-power requirements, it is particularly well-suited for portable and battery-powered devices where space and energy efficiency are critical considerations. Maxim Integrated's commitment to security ensures that the DS28E02 is a reliable choice for designers looking to incorporate secure data storage and authentication mechanisms into their systems.