DS1990A-F5+

The DS1990A-F5+ is a unique identification iButton device produced by Maxim Integrated (now part of Analog Devices). It is a small, rugged, and portable device enclosed in a stainless steel case, designed for use in a variety of identification and access control applications. Each DS1990A-F5+ contains a unique 64-bit ROM code, which serves as a unique electronic registration number. This ROM code is factory-lasered and cannot be altered, ensuring that each iButton is one-of-a-kind.
The device communicates using the 1-Wire protocol, which requires only a single data line and ground for communication, making it efficient and easy to integrate into systems. The DS1990A-F5+ is often used in applications such as asset tracking, security access, and equipment authentication.
Its durability allows it to withstand harsh environments, making it suitable for outdoor and industrial applications. The device is usually read by touching it to a compatible reader, offering a simple and secure way to verify identity or access credentials.

The DS1990A-F5+ is a Dallas Semiconductor iButton device, often used for identification purposes. Equivalent products include:
1. DS1990A - Non-plus version with similar functionality.
2. CYFRAL - Similar iButton devices used in specific applications.
3. Em-Marine - Offers comparable key fobs for access control.
4. Atmel AT88RF020 - Provides contactless identification capabilities.
These products serve similar roles in systems requiring electronic identification and authentication. Compatibility and specific features should be verified for your application needs.

The DS1990A-F5+ is a unique identification device, commonly known as an iButton or a 1-Wire device, produced by Maxim Integrated. It features a factory-lasered 64-bit unique registration number that provides a virtually infinite number of unique IDs, ensuring no two devices are alike. This makes it ideal for applications requiring secure identification, access control, and inventory management.
The device operates using the 1-Wire communication protocol, which allows both power and data to be transmitted over a single wire, simplifying connectivity and reducing wiring requirements. Its durable stainless-steel case makes it highly resistant to environmental factors, such as temperature extremes, moisture, and physical wear, making it suitable for both indoor and outdoor applications.
The DS1990A-F5+ is compact, portable, and easy to use. It can be embedded into various form factors, such as key fobs or badges, for convenient use. Additionally, it requires minimal maintenance, as it does not rely on batteries. Its low cost and robust features make it an attractive option for a wide range of identification and authentication solutions.

The DS1990A-F5+ is an iButton device produced by Maxim Integrated. It features a 64-bit unique identification number, making it suitable for applications such as access control and asset management. The package is in a small stainless-steel canister resembling a button, which provides durability and ease of use.
The DS1990A-F5+ operates with a single contact point, known as the "pad," on the top surface, and the metal canister body acts as the ground contact. This essentially results in a two-contact system: the data contact (pad) and ground (canister body).
In terms of function, it communicates using a 1-Wire protocol, which allows data transfer over a single wire and is powered parasitically by the data line, eliminating the need for an external power supply. This simplifies connectivity and implementation in various devices and systems.
Overall, the DS1990A-F5+ is valued for its robust design, minimal contact requirement, and unique identification capabilities.

The DS1990A-F5+ is manufactured by Maxim Integrated, which is now a part of Analog Devices, Inc. Analog Devices is a multinational semiconductor company that designs, manufactures, and markets a broad range of analog, mixed-signal, and digital signal processing integrated circuits. They serve industries such as communications, automotive, industrial, healthcare, and consumer electronics. The DS1990A-F5+ itself is a part of their product line that focuses on solutions for electronic identification and authentication applications.

The DS1990A-F5+ is a digital identification device commonly used in applications requiring secure access control and identification. Its primary applications include:
1. Access Control Systems: Used in key fobs for secure entry into buildings or restricted areas.
2. Time and Attendance: Employed in systems for tracking employee attendance and working hours.
3. Asset Management: Utilized for tracking and managing assets within an organization.
4. Security and Identification: Deployed in systems needing unique identification codes for user verification.
5. Industrial Automation: Applied in processes requiring secure and reliable identification of components or personnel.
Its durable form factor makes it suitable for environments where reliability and durability are crucial.

The DS1990A-F5+ is an iButton device from Maxim Integrated, packaged in a stainless steel canister. It features a unique 64-bit serial number used for identification and authentication purposes. The device is designed to be durable and is often used in applications requiring rugged and tamper-proof identification tags.