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DS1991L-F5
The DS1991L-F5 is a button-sized iButton device with a unique ID and memoryDS1991L-F5
The DS1991L-F5 is a button-sized iButton device with a unique ID and memory
Quality Assurance
Quality Assurance
All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.
Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
About Shipping
We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.
About Payment
We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.
If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.
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DS1991L-F5 DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The DS1991L-F5 is an iButton device manufactured by Maxim Integrated. It serves as an electronic key or identification token. Encased in a stainless steel can, it is highly durable and resistant to harsh environments, making it suitable for various applications. The device communicates via the 1-Wire protocol, enabling simple integration into existing systems. Its unique 64-bit serial number ensures individual identification, while its 2048 bits of read/write memory allow for customizable data storage. The DS1991L-F5 operates within a wide temperature range, from -40°C to +85°C, ensuring reliability in diverse conditions. Its small size, comparable to that of a coin, facilitates discreet deployment. With its robust construction and versatile functionality, the DS1991L-F5 is ideal for access control, asset tracking, and authentication purposes in industries ranging from healthcare to logistics
Key Features
- Unique 64-bit serial code
- Reads and writes with just one pin
- Low-cost electronic key for physical access control
- Memory partitioned into 256-bit pages
- Operating temperature range of -40°C to +85°C
- Communicates with reader via 1-Wire protocol
Application
- Access control for doors and secure areas
- Asset tracking and management
- Inventory management
- Agricultural monitoring
- Temperature and humidity monitoring
- Medical asset tracking
- Automotive parts tracking
- Supply chain management
- Wildlife tracking and monitoring
- Industrial automation and control
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Part Life Cycle Code | Transferred | Reach Compliance Code | |
| ECCN Code | EAR99 | HTS Code ! | 8542.32.00.71 |
| Access Time-Max | 15000 ns | JESD-30 Code | O-MEDB-N2 |
| Memory Density | 1152 bit | Memory IC Type | MEMORY CIRCUIT |
| Memory Width | 1 | Number of Functions | 1 |
| Number of Terminals | 2 | Number of Words | 1152 words |
| Number of Words Code | 1152 | Operating Mode ! | ASYNCHRONOUS |
| Operating Temperature-Max | 70 °C | Operating Temperature-Min | -40 °C |
| Organization | 1152X1 | Package Body Material | METAL |
| Package Equivalence Code | BUTTON,.68IN | Package Shape | ROUND |
| Package Style | DISK BUTTON | Power Supplies ! | 3/5 V |
| Qualification Status ! | Not Qualified | Supply Voltage-Max (Vsup) | 6 V |
| Supply Voltage-Min (Vsup) | 2.8 V | Surface Mount ! | YES |
| Technology | CMOS | Temperature Grade ! | OTHER |
| Terminal Form ! | NO LEAD | Terminal Position | END |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is DS1991L-F5?
The DS1991L-F5 is a 64-bit, user-programmable, iButton® electronic key designed by Maxim Integrated. It serves as a unique electronic identification device and is commonly used in access control, asset management, and security applications.
How Does DS1991L-F5 Work?
The DS1991L-F5 works by storing a unique 64-bit identification code that can be programmed by the user. This code is then read by an iButton reader, allowing the device to be used for secure user identification and authentication. The device features a durable stainless steel case, making it suitable for harsh environmental conditions.
How Many Pins does DS1991L-F5 have and What are the Functions of the Pinout Configuration?
The DS1991L-F5 is a 2-pin device, consisting of:
- 1-Wire Interface: The single contact on the device provides both ground and data, enabling communication with the device using Maxim Integrated's 1-Wire protocol.
What are the Pros and Cons of DS1991L-F5?
Pros:
- Secure Identification: Provides a unique, user-programmable 64-bit ID for secure identification and authentication.
- Durable Construction: The stainless steel iButton housing ensures durability and reliability in harsh environments.
- Simple Interface: Utilizes the 1-Wire interface for easy integration into various systems.
- Low Power Consumption: Operates with low power, suitable for battery-powered applications.
- Compact Form Factor: The small, button-shaped package allows for convenient and discreet deployment.
Cons:
- Limited Functionality: Designed primarily for identification purposes and does not offer extensive data storage or processing capabilities.
- Specialized Readers: Requires compatible iButton readers for communication and operation.
- Additional Security Measures: May require additional security measures to prevent unauthorized access or cloning.
Are There Any Equivalents/Alternatives to DS1991L-F5 for Recommendation?
There are no direct equivalents to the DS1991L-F5 as it is a unique product in the iButton electronic key category. However, alternative electronic key solutions include the DS1990A-F5 and DS1993L-F5 from Maxim Integrated, which offer similar functionality within the iButton ecosystem.
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