DS28E25+T

The DS28E25+T is a secure authenticator device from Maxim Integrated's portfolio. It is designed to provide robust security features for embedded systems and IoT applications. Key functionalities include challenge-response authentication based on SHA-256, secure EEPROM for storing user data and cryptographic keys, and a one-wire communication interface for easy integration and power efficiency.
The device ensures data integrity and confidentiality by utilizing unique, secret keys and cryptographic algorithms. It is often used in applications where counterfeit prevention and secure feature enablement are critical, such as in consumable modules, accessory authentication, and secure feature activation.
The DS28E25+T is a variant that may come with specific packaging or environmental specifications, denoted by the "+T" suffix, often related to tape-and-reel packaging for automated manufacturing processes. The device provides a simple yet effective solution for securing data exchanges and ensuring the authenticity of connected components, making it an essential component in modern secure system designs.

The DS28E25+T is a 1-Wire secure authenticator chip by Maxim Integrated, used for authentication and data protection. Equivalent products include:
1. Atmel's ATSHA204A - Provides secure authentication and offers similar functionality.
2. Microchip's ATECC608A - An advanced secure element providing cryptographic operations.
3. NXP's SE050 - A secure element supporting a wide range of cryptographic features.

These alternatives offer secure communication and data protection features suitable for various applications.

The DS28E25 is a 1-Wire device by Maxim Integrated with several key features:
1. 1-Wire Interface: Provides communication through a single data line plus ground, simplifying connectivity.

2. EEPROM Memory: Contains 1.5Kb of user-programmable EEPROM, allowing for data storage and retrieval.
3. SHA-256 Authentication: Implements secure challenge-and-response authentication via the SHA-256 algorithm, ensuring data integrity and security.
4. Unique 64-Bit ROM ID: Each device has a unique, factory-programmed 64-bit ROM ID, crucial for multiple-device communication networks.
5. Security Features: Includes features such as a write protection for memory blocks and optional authentication protection to prevent unauthorized access and tampering.
6. Robust Operation: Designed to function across a wide temperature range and is suitable for harsh environmental conditions.
7. Low Power Consumption: Optimized for minimal power usage, making it suitable for battery-powered applications.
These features make the DS28E25 suitable for applications requiring secure data storage and communication, such as access control, secure data logging, and anti-counterfeiting.

The DS28E25+T is a secure authenticator from Maxim Integrated, designed for use in applications requiring cryptographic security. It is housed in a 6-pin TDFN (Thin Dual Flat No Lead) package. The pin count is 6.
Here's a breakdown of its pin functions:
1. DQ (Data Line): This is a 1-Wire data line used for communication with the host.
2. VCC (Supply Voltage): Power supply input for the device.
3. GND (Ground): Ground reference for the device.
4. NC (No Connect): This pin is not connected internally and should be left unconnected.
5. NC (No Connect): Another pin that is not connected internally and should be left unconnected.
6. NC (No Connect): Similar to the previous two, this pin is also not connected internally.
The DS28E25+T uses a single-contact 1-Wire interface for communication and features advanced cryptographic operations including ECC (Elliptic Curve Cryptography) for authentication and secure communication. It is suitable for applications requiring robust security measures such as IoT devices, medical equipment, and secure accessories.

The DS28E25+T is manufactured by Maxim Integrated, which is now a part of Analog Devices, Inc. Maxim Integrated was known for designing, manufacturing, and selling analog and mixed-signal integrated circuits for various applications. Its product offerings include power management ICs, sensors, analog ICs, interface circuits, communications solutions, and more, catering to industries such as consumer electronics, automotive, industrial, healthcare, and communications.
As of 2021, Maxim Integrated was acquired by Analog Devices, a well-established company in the semiconductor industry that focuses on designing and manufacturing a wide range of analog, mixed-signal, and digital signal processing integrated circuits. Analog Devices serves a broad array of markets, including automotive, communications, consumer, data center, healthcare, and industrial, providing solutions for applications such as sensing, measuring, power management, and interpreting real-world phenomena.

The DS28E25+T is a 1-Wire secure authenticator with advanced encryption and authentication features. Its application areas include:
1. Secure Peripherals: Protecting against counterfeit accessories and peripherals in consumer electronics.
2. Medical Devices: Ensuring authenticity and secure communication in medical equipment.
3. IoT Devices: Providing cryptographic security for IoT applications to prevent unauthorized access.
4. Industrial Systems: Enhancing security in industrial automation and control systems.
5. Supply Chain Security: Preventing counterfeit products in the supply chain by enabling secure component verification.
These applications leverage its cryptographic capabilities to ensure data integrity and authentication.

The DS28E25+T is packaged in a 6-pin TDFN (Thin Dual Flat No-lead) package.