DS28E25G+U

The DS28E25G+U is a secure authenticator integrated circuit from Maxim Integrated, designed for applications requiring secure authentication and data protection. It features a 1-Wire® interface, allowing communication over a single data line plus ground, which simplifies the connection to a host system. The device provides cryptographic security through SHA-256 authentication and includes a unique 64-bit ROM identification for each device, enhancing security for applications like accessories and peripherals authentication, consumables, and secure data exchange.
Additionally, the DS28E25G+U includes 2Kb of user-programmable EEPROM, which can be used for storing user data or configuration settings securely. The EEPROM supports features like write protection and OTP (One-Time Programmable) locking, ensuring that critical data cannot be altered after locking. The device operates over a wide voltage range, making it versatile for various electronic environments. Its small form factor and low-power operation make it suitable for compact and battery-powered applications. Overall, the DS28E25G+U offers a robust solution for secure authentication and data integrity in modern electronic systems.

The DS28E25G+U is a 1-Wire Secure Authenticator with EEPROM. Equivalent products offering similar functionality might include:
1. Maxim Integrated DS28E15: Offers similar secure authentication features.
2. Atmel AT88SA100S: Provides secure authentication with EEPROM.
3. Microchip's ATSHA204A: Another secure authenticator with memory capabilities.
4. Maxim Integrated DS2432: A 1-Wire EEPROM with similar security features.
These alternatives vary in specific features and compatibility, so check datasheets for exact matches to your requirements.

The DS28E25G+U is a secure authenticator from Maxim Integrated, designed for applications requiring secure authentication and storage. Key features include:
1. 1-Wire® Interface: Utilizes a single communication line for data exchange, simplifying wiring.

2. Secure Storage: Provides 2Kb of user-programmable EEPROM to store sensitive information securely.
3. SHA-256 Authentication: Supports cryptographic operations using the SHA-256 algorithm for robust authentication.
4. Unique ROM ID: Each device has a factory-programmed, unique 64-bit ROM ID, ensuring device identity.
5. Secure Key Storage: Safeguards cryptographic keys against unauthorized access.
6. Hardware-Based Security: Offers physical protection against tampering and unauthorized extraction of stored data.
7. Protection Modes: Features configuration settings to lock memory segments and access to operations.
8. Operating Voltage: Functions at a range from 3.3V to 5.25V, suitable for various applications.
9. Wide Operating Temperature: Works efficiently between -40°C to +85°C, making it suitable for industrial environments.
These features make the DS28E25G+U ideal for use in secure IoT applications, access control, and other systems requiring reliable authentication.

The DS28E25G+U is a 1-Wire EEPROM device manufactured by Maxim Integrated. It features 112 bytes of user-programmable EEPROM memory and includes a unique 64-bit ROM identification number. The device is designed for secure authentication and data storage applications.
The DS28E25G+U comes in a 6-pin package, with the following pin functions:
1. GND - Ground reference for the device.
2. 1-Wire - This pin serves as both the data line and power supply line (parasitic power) for the 1-Wire communication protocol.
3. N.C. - No connection; not internally connected.
4. N.C. - Another pin with no connection.
5. N.C. - Another pin with no connection.
6. VCC - Optional external supply voltage if not using parasitic power.
The DS28E25G+U supports features like SHA-256 authentication, tamper protection, and a robust communication protocol to ensure secure data exchange.

The DS28E25G+U is manufactured by Maxim Integrated, which is now a part of Analog Devices, Inc. after a merger was completed in August 2021. Maxim Integrated is a company that designs, manufactures, and sells a wide range of analog and mixed-signal semiconductor products. These products are used in various electronic devices and systems, including communications, consumer, automotive, and industrial equipment.
Analog Devices, Inc., the parent company, is a prominent player in the semiconductor industry, specializing in the design and production of analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs). The company serves a diverse range of markets and applications, providing solutions for areas such as data conversion, signal processing, power management, and interfacing. Both Maxim Integrated and Analog Devices are known for their innovation and high-quality product offerings, which are used by engineers and designers to develop sophisticated electronic systems.

The DS28E25G+U is a secure authenticator designed for applications requiring robust security measures. It is commonly used in areas such as anti-counterfeiting, secure accessory authentication, and device attestation. This includes applications like medical device protection, secure IoT device communication, consumable authentication (e.g., printer cartridges), and industrial systems requiring secure component identification. The device provides cryptographic operations, secure key storage, and supports the SHA-256 algorithm, making it ideal for environments where data integrity and authenticity are critical. Its 1-Wire interface simplifies integration with minimal wiring, suitable for space-constrained applications.

The DS28E25G+U package type is a 6-pin TDFN (Thin Dual Flat No Lead) package.