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DS1991 Datasheet Multikey Ibutton

Manufacturer: Dallas Semiconductor

Overview: DS1991 MultiKey iButtonTM .dalsemi. SPECIAL.

General Description

The DS1991 MultiKey iButton is a rugged read/write data carrier that acts as three separate

Key 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.

More Datasheets from Dallas Semiconductor

Part Number Description
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
DS1995 16-kbit Memory iButton
DS1996 64kbit Memory iButtonTM
DS1963L 4k-BIT MONETARY iButton
DS1982 1-kbit Add-Only iButton
DS1982U (DS1982U - DS1986U) Uniqueware Ibutton
DS1985 16-kbit Add-Only iButton
DS1985U (DS1982U - DS1986U) Uniqueware Ibutton

DS1991 Distributor