DS1991 - MultiKey iButton

Product Overview

Dallas Semiconductor

Datasheet Details

Part number	DS1991
Manufacturer	Dallas Semiconductor
File Size	326.54 KB
Description	MultiKey iButton
Datasheet	DS1991 Datasheet
Additional preview pages of the DS1991 datasheet.

Product details

Description

The DS1991 MultiKey iButton is a rugged read/write data carrier that acts as three separate electronic keys, offering 1,152 bits of secure, nonvolatile memory.

Features

1,152-bit secure read/write, nonvolatile memory.
Secure memory cannot be deciphered www. DataSheet4U. com without matching 64-bit password.
Memory is partitioned into 3 blocks of 384 bits each.
64-bit password and ID fields for each memory block.
512-bit scratchpad ensures data transfer integrity.
Operating temperature range: -40°C to +70°C.
Over 10 years of data retention.
Easily affixed with self-stick adhesive backing, latched by its flange.

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Other Datasheets by Dallas Semiconductor

DS1992 - (DS1992 / DS1993) 1kbit/4kbit Memory iButtonTM DS1994 4-kbit Plus Time Memory iButtonTM
DS1993 - (DS1992 / DS1993) 1kbit/4kbit Memory iButtonTM DS1994 4-kbit Plus Time Memory iButtonTM
DS1994 - 4kb Plus Time Memory iButton
DS1963L - 4k-BIT MONETARY iButton
DS1982 - 1-kbit Add-Only iButton
DS1982U - (DS1982U - DS1986U) Uniqueware Ibutton

Published: Jul 5, 2008 |