Product Summary

The DS1991L-F5+ MultiKey iButton is a rugged read/write data carrier that acts as three separate electronic keys, offering 1,152 bits of secure, nonvolatile memory. Each key is 384 bits long with distinct 64-bit password and public ID fields.

Parametrics

DS1991L-F5+ absolute maximum ratings: (1)Voltage on any Pin Relative to Ground: -0.5V to +7.0V; (2)Operating Temperature: -40℃ to +70℃; (3)Storage Temperature: -40℃ to +70℃.

Features

DS1991L-F5+ features: (1)1,152-bit secure read/write, nonvolatile memory; (2)Secure memory cannot be deciphered without matching 64-bit password; (3)Memory is partitioned into 3 blocks of 384 bits each; (4)64-bit password and ID fields for each memory block; (5)512-bit scratchpad ensures data transfer integrity; (6)Operating temperature range: -40℃ to +70℃ ; (7)Over 10 years of data retention.

Diagrams

DS1991L-F5+ EQUIVALENT CIRCUIT

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
DS1991L-F5+
DS1991L-F5+

Maxim Integrated Products

iButtons

Data Sheet

Negotiable 
DS1991L-F5+A1A
DS1991L-F5+A1A

Maxim Integrated Products

iButtons

Data Sheet

Negotiable