DS1971-F5 iButton with Black Fob Assembled

DS1971-F5 iButton with Black Fob Assembled

DS1971-F5 w/ Black Fob

Place of Origin: China(Mainland)                   Part Number: DS1971-F5-B             Brand Name: Dallas / Maxim Integrated
Min. Order Quantity: 100 Pieces                     Port: Guangzhou                                 Payment Terms: T/T, Western Union, Paypal

 

DS1971-F5 iButton with Black Fob Assembled

Description

The DS1971 256-bit EEPROM iButton is a rugged read/write data carrier that identifies and stores relevant information about the product or person to which it is attached. This information can be accessed with minimal hardware: for example, a single port pin of a microcontroller. The DS1971 consists of a factory-lasered registration number that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit Family Code (14H) plus 256 bits of EEPROM. The power to program and read the DS1971 is derived entirely from the 1-Wire communication line.

Data is transferred serially via the 1-Wire protocol which requires only a single data lead and a ground return. The 48-bit serial number that is factorylasered into each DS1971 provides a guaranteed unique identity which allows for absolute traceability.

The durable MicroCan package is highly resistant to harsh environments such as dirt, moisture, and shock. Its compact button-shaped profile is self-aligning with cup-shaped receptacles, allowing the DS1971 to be used easily by human operators or automatic equipment. Accessories permit the DS1971 to be mounted on printed circuit boards, plastic key fobs, photo-ID badges, ID bracelets, and many other objects.

 

Special Features

  • 256-bit Electrically Erasable Programmable Read Only Memory (EEPROM) communicates with the economy of one signal plus ground
  • EEPROM organized as one 256-bit page
  • 64-bit one-time programmable application register is automatically write-protected after programming
  • Reduces control, address, data, power, and programming signals to a single data pin
  • 8-bit family code specifies DS1971 communications requirements to reader
  • Reads and writes over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C

 

Common iButton Features

  • Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48-bit serial number + 8-bit CRC tester) assures absolute traceability because no two parts are alike
  • Multidrop controller for MicroLAN
  • Digital identification and information by momentary contact
  • Chip-based data carrier compactly stores information
  • Data can be accessed while affixed to object
  • Economically communicates to bus master with a single digital signal at 16.3kbps
  • Standard 16mm diameter and 1-Wire? protocol ensure compatibility with iButton family
  • Button shape is self-aligning with cupshaped probes
  • Durable stainless steel case engraved with registration number withstands harsh environments
  • Easily affixed with self-stick adhesive backing, latched by its flange, or locked with a ring pressed onto its rim
  • Presence detector acknowledges when reader first applies voltage
  • Designed to meet UL#913 (4th Edit.); Intrinsically Safe Apparatus, Under Entity Concept for use in Class I, Division 1, Group A, B, C and D Locations, contact Dallas Semiconductor for certification schedule

 

Applications

  • Work-in-progress Tracking
  • Electronic Travelers
  • Access Control and Storage of Calibration Constants

 

The DS1971-F5 can be found on its data sheet here: DS1971-F5 DataSheet.

 

*Note: iButton and 1-Wire are registered trademarks of Maxim.

 


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