DS1982-F3+ by Analog Devices

iButton 1Kb Add-Only

Status: Active
Series: DS1982
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The iButton® 1Kb add-only (DS1982) 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 DS1982 consists of a factory-lasered registration number that includes an unique 48-bit serial number, an 8-bit CRC, and an 8-bit Family Code (09h) plus 1Kb of EPROM which is user-programmable. The power to program and read the DS1982 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 entire device can be programmed and then write-protected if desired. Alternatively, the part may be programmed multiple times with new data being appended to, but not overwriting, existing data with each subsequent programming of the device. Note: Individual bits can be changed only from a logical 1 to a logical 0, never from a logical 0 to a logical 1. A provision is also included for indicating that a certain page or pages of data are no longer valid and have been replaced with new or updated data that is now residing at an alternate page address. This page address redirection allows software to patch data and enhance the flexibility of the device as a standalone database. The 48-bit serial number that is factory-lasered into each DS1982 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 DS1982 to be used easily by human operators or automatic equipment. Accessories permit the DS1982 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, storage of calibration constants, and debit tokens.

Prices starting from US$4.29


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$4.50
4,901
Buy Now
Logo for element14 element14 US$4.50
4,901
Buy Now
View Full Pricing & Stock Comparison

Features

1024 bits Electrically Programmable Read-Only Memory (EPROM) communicates with the economy of one signal plus ground
EPROM partitioned into four 256-bit pages for randomly accessing packetized data
Each memory page can be permanently write-protected to prevent tampering
Device is an "add only" memory where additional data can be programmed into EPROM without disturbing existing data
Architecture allows software to patch data by superseding an old page in favor of a newly programmed page
Reduces control, address, data, power, and programming signals to a single data pin
8-bit family code specifies DS1982 communications requirements to reader
Reads over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C; programs at 11.5V to 12.0V from -40°C to +50°C

Specifications

Technology iButton
End Equipment Asset Management
Memory Type EPROM
Memory Size 1K bits
Unique Ware No
Real Time Clock No
BudgetaryPrice (See Notes) 2.33


DS1982-F3+ Semiconductors - ICs by Analog Devices

IBUTTON 1KBIT EPROM CAN

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Memory Size 1Kbit
Memory Type EPROM
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Ibutton, 1Kbit, Eprom, Can | Newark Electronics
IBUTTON, 1KBIT, EPROM, CAN | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS1982-F3+ ?

Additional datasheets, footprints and schematics for DS1982-F3+ are listed on our Part Details page. You can also find images and similar parts to DS1982-F3+ on this page.

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Distributor pricing and stock information is available for DS1982-F3+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view DS1982-F3+ price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the DS1982-F3+ you can contact the distributor directly for product support, shipping queries etc.

Is the DS1982-F3+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS1982-F3+ have stock available?

Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for DS1982-F3+ .

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