Maxim Integrated DS28E02Q-W01+3T Secure Authentication Chip

The DS28E02Q-W01+3T from Maxim Integrated is a robust, high-security authentication chip designed to provide a tamper-proof identity or cryptographic message authentication for a variety of applications. This advanced device utilizes Maxim's patented 1-Wire® interface, which allows communication through a single data line plus ground for simplified integration into your existing systems.

The chip features a unique, factory-programmed 64-bit registration number that ensures no two devices are alike, offering a secure way to identify and authenticate peripheral devices. Its memory is organized as two partitions: one for user data and one for control data. The user data section consists of 1024 bits of EEPROM, which can be used to store data such as device IDs, calibration constants, or usage data that can be securely updated with the chip's write cycle counters.

Control data includes the set of high-endurance EEPROM registers for the device's configuration settings and secret keys. The DS28E02Q-W01+3T supports the SHA-256 cryptographic algorithm, which provides robust protection against unauthorized access and ensures data integrity when performing challenge-and-response authentication sequences.

The device also includes a FIPS/NIST compliant true random number generator (TRNG) for generating cryptographic keys or other random data required by your security protocols. This feature is essential for creating a secure environment and for implementing strong encryption mechanisms.

The DS28E02Q-W01+3T operates over a wide voltage range of 2.8V to 5.25V and is available in a compact, 6-pin TSOC package. It is designed for a variety of applications, including accessory and peripheral authentication, secure data storage, and consumable product authentication, making it an ideal choice for manufacturers looking to enhance the security of their products.

With its combination of secure storage, cryptographic capabilities, and unique identification, the DS28E02Q-W01+3T from Maxim Integrated is a powerful solution for protecting your products from counterfeiting, unauthorized use, and other security threats.