DS28EL22Q+U

The DS28EL22Q+U is a product from Maxim Integrated, designed for secure authentication and data storage applications. This device is a part of the company's line of secure memory products. It integrates a unique and unalterable 64-bit ROM identification number, which is useful for authentication processes. The DS28EL22Q+U includes a secure hash algorithm (SHA-256) engine, providing robust cryptographic functions to ensure data integrity and security. It features 2Kb of secure EEPROM memory, which can be partitioned into different zones, each configurable with distinct access rights and permissions.
One of the standout features of the DS28EL22Q+U is its 1-Wire interface, allowing communication over a single data line, simplifying the device's connection to a host controller. This interface supports network communication with multiple devices, making it ideal for use in environments where device identification and secure data exchange are crucial. Typical applications include access control systems, secure peripherals, and IoT devices, where ensuring authenticity and protecting data are paramount.

The DS28EL22Q+U is a 1-Wire EEPROM device with authentication capabilities. Equivalent products would need similar features, such as secure memory and authentication. Potential alternatives include:
1. Maxim Integrated's DS28E50 - Offers secure authentication and EEPROM.
2. Atmel's ATSHA204A - Provides authentication and EEPROM features.
3. Microchip's 24AA02E64 - While primarily EEPROM, some variants may have authentication.
4. STMicroelectronics' STSAFE-A100 - Offers secure authentication and memory functionalities.
Compatibility depends on specific application requirements and pin configurations.

The DS28EL22Q+U is a 1-Wire secure authenticator device from Maxim Integrated. Key features include:
1. 1-Wire Interface: Communicates using a single contact, simplifying the interconnection between the master and slave devices.

2. Advanced Security: Provides a SHA-256-based challenge-and-response authentication, ensuring secure communication and protection against unauthorized access.
3. EEPROM Memory: Includes a 1Kb EEPROM for storing user data and secret keys, supporting secure storage and retrieval.
4. Unique ROM ID: Each device has a factory-lasered 64-bit ROM ID that guarantees unique identification on a 1-Wire network.
5. Temperature Range: Operates over a wide temperature range, typically suitable for automotive and industrial environments.
6. Robustness: Designed to withstand harsh conditions, ensuring durability and reliability in various applications.
7. Application Areas: Ideal for secure authentication in applications like accessory and peripheral authentication, printer cartridge identification, and medical consumable identification.
8. Low Power Consumption: Efficiently operates with low power requirements, making it suitable for battery-powered applications.
The DS28EL22Q+U provides a secure, reliable, and efficient solution for applications requiring strong authentication and data protection.

The DS28EL22Q+U is a 1-Wire secure authenticator device by Maxim Integrated. It features a 6-pin configuration. The primary function of the DS28EL22Q+U is to provide secure authentication and protection for electronic systems. It contains cryptographic algorithms that help ensure secure communication between devices, making it suitable for applications requiring data protection, such as in access control, secure peripherals, and authentication of consumables.
Key features include:
1. 1-Wire Interface: Allows communication using a single data line, simplifying connectivity.
2. Secure Authentication: Utilizes cryptographic algorithms for secure verification.
3. EEPROM: Contains user memory with protection features.
4. Unique 64-bit ROM ID: Ensures each device is uniquely identifiable.
5. SHA-256 Cryptography: Provides robust security through industry-standard algorithms.
The device is designed to operate over a wide voltage range and is typically used where secure, authenticated communication is required.

The DS28EL22Q+U is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is a company known for designing and manufacturing a broad range of analog and mixed-signal integrated circuits. It serves various industries including consumer electronics, automotive, industrial, communications, and healthcare. The company is recognized for its expertise in power management, interface, and sensor technologies. As part of Analog Devices, it contributes to a larger portfolio that addresses numerous applications in the electronic components industry.

The DS28EL22Q+U is primarily used in applications requiring secure authentication and data protection. Its typical applications include secure access control systems, anti-counterfeiting measures, peripheral device authentication, and secure data transfer. The device is particularly suitable for environments where there is a need to ensure the authenticity and integrity of devices and data, such as in medical devices, industrial control systems, and consumer electronics. Its 1-Wire interface also makes it ideal for applications where minimizing wiring and connectivity complexity is important.

The DS28EL22Q+U is packaged in a 6-pin TSOC (Thin Small Outline Package).