DS28E25-W19+

The DS28E25-W19+ is a secure, 1-Wire EEPROM device manufactured by Maxim Integrated, designed for applications requiring secure authentication and data storage. It features 2Kb of EEPROM memory, with a 64-bit unique registration number for network identification. The device incorporates a SHA-256 hardware engine for strong cryptographic authentication, ensuring data integrity and protection against unauthorized access.
This EEPROM leverages Maxim’s 1-Wire communication protocol, which allows both power and data to be transmitted over a single data line, simplifying connectivity and reducing wiring. The device is ideal for use in applications such as accessory and peripheral authentication, secure feature enablement, and counterfeit prevention.
The DS28E25-W19+ offers robust security features, including secure memory access with authentication challenge-response protocols and memory protection modes. Its compact and efficient design makes it suitable for space-constrained applications. Additionally, the device operates over a wide temperature range, making it versatile for various industrial and consumer environments.

The DS28E25-W19+ is a 1-Wire EEPROM with PUF technology from Maxim Integrated, now part of Analog Devices. Equivalent products could include other 1-Wire EEPROMs from the same manufacturer or similar EEPROMs with secure authentication features from companies like Microchip Technology (e.g., AT21CS series) or Cypress Semiconductor (a part of Infineon Technologies). Ensure compatibility in terms of memory size, interface, and security features when considering alternatives.

The DS28E25-W19+ is a secure authentication device from Maxim Integrated, designed primarily for applications requiring secure communication and data protection. Key features of the DS28E25-W19+ include:
1. 1-Wire® Interface: Allows for communication over a single data line, simplifying connections and reducing the number of GPIO pins needed.
2. SHA-256 Authentication: Utilizes a secure hash algorithm to provide robust challenge-response authentication, ensuring data integrity and device authenticity.
3. EEPROM Memory: Includes 1024 bits of user-programmable EEPROM, which can store keys, certificates, or other data necessary for secure operations.
4. Unique 64-bit ROM ID: Each device has a factory-programmed, unalterable 64-bit ROM identification number, which helps in setting up and managing secure communication.
5. Strong Cryptographic Protection: Provides protection against cloning and counterfeiting, making it suitable for secure applications in IoT devices, medical instruments, and consumables.
6. Small Footprint: Available in a compact form factor, facilitating easy integration into various electronic designs without much space overhead.
These features make the DS28E25-W19+ ideal for enhancing security in embedded systems and authenticating peripheral devices.

The DS28E25-W19+ is manufactured by Maxim Integrated. Maxim Integrated is a company that specializes in designing, developing, and manufacturing analog and mixed-signal integrated circuits. Its products are used in a wide range of industries, including automotive, industrial, communications, consumer, and data center markets. In 2021, Maxim Integrated was acquired by Analog Devices, another major player in the semiconductor industry, which further expanded its reach and capabilities in providing innovative electronic solutions.

The DS28E25-W19+ is primarily used in secure authentication applications. It is ideal for use in systems requiring protection against unauthorized access and counterfeiting, such as in IoT devices, consumer electronics, and medical devices. The device's 1-Wire interface and secure memory features allow it to perform challenge-and-response authentication, making it suitable for safeguarding sensitive data and ensuring secure communication between devices. Additionally, it can be used in applications requiring secure peripherals or accessory identification, ensuring that only authorized peripherals can connect to a host system.

The DS28E25-W19+ is packaged in a 6-pin TSOC (Thin Small Outline Package).