DS1971 iButton

iButton 256-bit EEPROM

The iButton® 256-bit EEPROM DS1971 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 factory-lasered 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. Applications include work-in-progress tracking, electronic travelers, access control and storage of calibration constants.

 

Key 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

Datasheet

DS1971-F5+ iButton
Availability: 999 in stock.
SKU: 150.001.19710
€4.12 excl tax
PRICE BREAKS - The more you buy, the more you save
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Price €4.12 €4.12 €4.12
This product has a minimum quantity of 100
DS1971-F3+ iButton
Availability: 57702 in stock.
SKU: 150.001.19711
€3.14 excl tax
PRICE BREAKS - The more you buy, the more you save
Quantity 5+ 10+ 25+
Price €3.14 €3.14 €3.14
This product has a minimum quantity of 100