DS28E25Q+U

The DS28E25Q+U is a cryptographic secure authenticator IC from Maxim Integrated, designed to enhance security in a variety of applications. It features a unique 1-Wire interface, allowing for communication with minimal pin count and simplified wiring. The device includes robust cryptographic features, such as hardware-based SHA-256 algorithm support, which ensures secure authentication and data integrity.
Additionally, the DS28E25Q+U offers 2Kb of user-programmable EEPROM, allowing storage of secret keys and other sensitive data. It also incorporates a sophisticated challenge-and-response protocol, which mitigates risks from replay attacks and unauthorized access.
The device is commonly used in applications like secure accessory authentication, IP protection, and secure feature enablement in consumer electronics, medical devices, and industrial systems. Its compact size and low power consumption make it suitable for integration in space-constrained and battery-operated devices. The DS28E25Q+U contributes to enhanced security by providing tamper-detection mechanisms and secure boot capabilities in embedded systems.

The DS28E25Q+U is a 1-Wire secure authenticator with public key capability. Equivalent products include:
1. Atmel/Microchip ATSHA204A: A secure authenticating chip with similar capabilities.
2. Maxim Integrated DS28E35: Another secure authenticator from the same family.
3. NXP NTAG 413 DNA: Offers similar cryptographic features for secure authentication.
4. Infineon OPTIGA Trust B: Provides robust authentication solutions with similar functionalities.
These alternatives vary in specific features and protocols, so compatibility should be verified for each use case.

The DS28E25Q+U is a secure Authenticator IC from Maxim Integrated, designed for authentication and secure communication. Key features include:
1. 1-Wire Interface: Utilizes a single communication line for data transfer, simplifying connection and reducing pin count.
2. SHA-256 Authentication: Provides strong authentication using the SHA-256 cryptographic algorithm, ensuring secure validation of devices.
3. Unique 64-bit ROM ID: Contains a factory-programmed unique identification number, allowing for precise identification and authentication.
4. EEPROM Memory: Offers 1.5Kb of user-programmable EEPROM memory for secure storage.
5. FIPS 180-4 Compliance: The SHA-256 engine complies with FIPS 180-4 for secure hashing.
6. Secure Key Storage: Protects secret keys from unauthorized access, enhancing security.
7. Wide Operating Range: Functions over a temperature range of -40°C to +85°C, suitable for various environments.
8. Low Power Consumption: Designed to operate with minimal power usage, ideal for battery-powered applications.
These features make the DS28E25Q+U suitable for use in applications requiring secure device authentication and data integrity, such as IoT devices, medical equipment, and consumer electronics.

The DS28E25Q+U is a 1-Wire EEPROM device from Maxim Integrated, featuring a unique 64-bit ROM ID and 1K-bit EEPROM organized as 32 blocks of 32 bits each. It typically comes in a 6-pin package, specifically a TDFN (Thin Dual Flat No-Lead) package. The pin functions include:
1. GND: Ground reference.
2. DQ: Data I/O and power pin, which is used for communication and power supply through the 1-Wire protocol.
3. NC: No Connect, often left unconnected.
4. NC: No Connect, often left unconnected.
5. NC: No Connect, often left unconnected.
6. NC: No Connect, often left unconnected.
The DS28E25Q+U provides secure authentication and data storage, suitable for applications requiring basic storage with limited connections. It can operate in environments with a wide supply voltage range, and its 1-Wire interface allows for reduced pin count and simplified connectivity.

The DS28E25Q+U is manufactured by Maxim Integrated. Maxim Integrated is a company known for designing, manufacturing, and selling analog and mixed-signal integrated circuits. These components are used in a wide range of industries, including consumer electronics, automotive, communications, and industrial sectors. Maxim Integrated is recognized for its expertise in providing high-performance semiconductor solutions, addressing power management, interface, and sensor technologies. The company became a part of Analog Devices, Inc. in 2021, following a merger, which expanded its capabilities and market reach in the semiconductor industry.

The DS28E25Q+U is typically used in applications requiring secure authentication and data protection. Key areas include:
1. Secure Authentication: Used in verifying the authenticity of peripherals or consumables in devices.
2. Data Protection: Offers protection for sensitive information in embedded systems.
3. Access Control: Utilized in systems requiring controlled access to secure areas or resources.
4. IoT Devices: Enhances the security of Internet of Things applications by preventing unauthorized device manipulation.
5. Supply Chain Security: Ensures component integrity and authenticity throughout the supply chain.
6. Medical Devices: Secures medical equipment and consumables to ensure device safety and compliance.
These use cases leverage the DS28E25Q+U’s unique cryptographic features for enhanced security.

The DS28E25Q+U is a secure authenticator IC from Maxim Integrated (now part of Analog Devices) that comes in a 6-pin TDFN (Thin Dual Flat No-Lead) package. This package type is compact, measuring approximately 3 mm x 3 mm, with a low profile, suitable for space-constrained applications.