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DS1985 - 16-kbit Add-Only iButton

General Description

The DS1985 16-kbit Add-Only iButton is a rugged read/write data carrier that identifies and stores relevant information about the product or person to which it is attached.

Key Features

  • 16384 bits Electrically Programmable Read Only Memory (EPROM) communicates with the economy of one signal plus ground.
  • EPROM partitioned into sixty-four 256-bit www. DataSheet4U. com pages for randomly accessing packetized data records.
  • 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 supersedi.

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Datasheet Details

Part number DS1985
Manufacturer Dallas Semiconductor
File Size 493.65 KB
Description 16-kbit Add-Only iButton
Datasheet download datasheet DS1985 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DS1985 16-kbit Add-Only iButtonTM www.dalsemi.com SPECIAL FEATURES 16384 bits Electrically Programmable Read Only Memory (EPROM) communicates with the economy of one signal plus ground § EPROM partitioned into sixty-four 256-bit www.DataSheet4U.