Maxim Integrated DS1982U-F5 1Kb Add-Only Memory iButton

The Maxim Integrated DS1982U-F5 is a robust, secure 1Kb Add-Only memory iButton device that provides a unique solution for data storage and transfer. This compact and durable device is part of the iButton family, designed to be easily attached to items or carried on a keychain, providing a portable and convenient means of storing information securely.

Enclosed in a stainless steel can, the DS1982U-F5's design ensures resilience against harsh environmental conditions, making it suitable for a wide range of applications, from asset tracking to access control. The device utilizes Maxim's 1-Wire® communication protocol, allowing for both power and data to be transmitted through a single contact with a compatible reader or adapter.

The DS1982U-F5 features a factory-lasered 64-bit registration number that includes a unique 48-bit serial number, an 8-bit CRC for verification, and an 8-bit Family Code (0x09 for the DS1982U-F5). This unique ID ensures that no two iButtons are alike, providing a secure way to identify and authenticate the device in any application.

With 1024 bits of EEPROM (Electrically Erasable Programmable Read-Only Memory), the DS1982U-F5 allows for the storage of user data. The add-only memory feature means that once data is written, it cannot be altered or erased, guaranteeing the integrity of the information stored. This makes the DS1982U-F5 an ideal choice for applications where data preservation is critical, such as in audit trails or usage logging.

The device operates over a wide voltage range of 2.8V to 6.0V and from -40°C to +70°C temperature range, ensuring reliable performance across different environments and applications. The DS1982U-F5's compact form factor, combined with its rugged construction and secure data storage capabilities, make it a versatile and reliable choice for a multitude of data management needs.

Whether you're looking to manage access, track assets, or securely store sensitive data, the Maxim Integrated DS1982U-F5 1Kb Add-Only Memory iButton is a powerful and flexible solution that you can trust.