Maxim Integrated DS1990A-F5 Serial Number iButton

The DS1990A-F5 from Maxim Integrated is a robust iButton device that serves as an electronic registration number for automatic identification. This product provides a guaranteed unique 64-bit serial number which can be used as a key or identifier for any application requiring a unique ID for tracking purposes.

Key Features:

• Unique 64-Bit Serial Number: The DS1990A-F5 contains a factory-lasered, 64-bit ROM that includes an unique 48-bit serial number, an 8-bit CRC for verification, and an 8-bit Family Code (01h).
• Durable Design: Encased in a stainless steel container, the iButton is able to withstand harsh environments and is resistant to dirt, moisture, and shock. Its durable construction ensures long-term reliability and use in a wide range of temperatures (-40°C to +70°C).
• Easy to Use: The iButton can be easily attached to objects with its flange mount or can be carried on a key fob, wallet, or watch. Its touch-and-go interface allows for simple and rapid communication with a reader or probe.
• Multi-Drop Capability: A single data line and a ground reference are used for communication, allowing multiple DS1990A-F5 devices to be connected on the same data line for efficient data acquisition.
• Applications: The DS1990A-F5 is versatile and can be used in various applications such as asset tracking, access control, work-in-progress tracking, and electronic cash transactions.

Specifications:

The device communicates over a 1-Wire interface, which requires only one data lead and a ground return. It is powered directly from the data line ("parasite power"), eliminating the need for an external power supply. The iButton is F5 MicroCan sized, making it compact and easy to integrate into various systems.

Ordering Information:

The DS1990A-F5 iButton is available for purchase directly from Maxim Integrated or through their authorized distributors. It is important to ensure compatibility with your existing system and to consider the necessary accessories for your application, such as iButton probes and holders.