DS1994

iButton 4Kb Memory Plus Time

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Product Lifecycle Obsolete

The models in this product family are no longer available.

Replacement Parts

To find replacement products for this part:

Rochester Electronics and Arrow Supply Assurance have partnered with Analog Devices to source products that have been previously discontinued or have become obsolete.

Documentation & Resources

Data Sheets

DS1994: iButton 4Kb Memory Plus Time Data Sheet (Rev. 4)
11/30/2009

PDF

628K

Reliability Data

DS1994 Reliability Data
1/12/2023

PDF

18K

Design Notes

Alternatives to the DS1994L 4Kb Plus Time Memory iButton®
9/10/2009
DS1994 Memory/Time iButton
4/18/2002

Technical Articles

1-Wire Software Resource Guide Device Description
7/8/2008
Dallas Buttons Ease Software Distribution Management
3/8/2002
Features, Advantages, and Benefits of Button-Based Security
3/8/2002

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.