Top

Digital Decoder Ring

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet Digital Decoder Ring Oct 20, 1999

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Key Features

  • Jewelry-grade stainless steel
  • 64kbits NV SRAM
  • 64-bit ROM registration number
  • 256-bit scratchpad
  • Operating range: -40°C to +70°C
  • Full TMEX software support
  • Over 10 years data retention

Applications/Uses

Description

The DS9104 Digital Decoder Ring is a portable database disguised as jewelry with the DS1996 Memory iButton® as signet. Data is transferred serially using the 1-Wire® protocol through a simple interface. Data is first written to a scratchpad, verified, and then transferred to NV memory. The 64-bit serial number guarantees that each ring is unique and traceable. The ring communicates by touch through a parallel or serial port interface. Applications include access control to buildings, doors, and computers and digitized storage of personal information.

Note: Rings cannot be resized as the iButton will not withstand the high temperatures required.

PART NO RING SIZE
(US/Canadian)
DIAMETER
(mm)
DS9104-060 6 16.4
DS9104-065 6-1/2 16.8
DS9104-070 7 17.3
DS9104-075 7-1/2 17.7
DS9104-080 8 18.1
DS9104-085 8-1/2 18.5
DS9104-090 9 18.9
DS9104-095 9-1/2 19.3
DS9104-100 10 19.7
DS9104-105 10-1/2 20.1
DS9104-110 11 20.6
DS9104-115 11-1/2 21.0
DS9104-120 12 21.4

Simplified Block Diagram

Technical Docs

Data Sheet Digital Decoder Ring Oct 20, 1999

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .