(China (Mainland))
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 (Figure 1). The password field must be matched in order to access the secure memory. Data is transferred serially via the 1-Wire protocol, which requires only a single data lead and a ground return.
Parametrics
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
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°C to +70°C; (7)Over 10 years of data retention Easily affixed with self-stick adhesive backing, latched by its flange, or locked with a ring pressed onto its rim; (8)Presence detector acknowledges when reader first applies voltage; (9)Meets UL#913 (4th Edit.); Intrinsically Safe Apparatus, Approved under Entity Concept for use in Class I, Division 1, Group A, B, C and D Locations.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||
|---|---|---|---|---|---|---|---|---|---|---|
 |
 DS1991L-F5 |
Maxim Integrated Products |
iButtons |
Data Sheet |
Negotiable |
|
||||
|
DS1991L-F5/A1A |
Maxim Integrated Products |
iButtons |
Data Sheet |
Negotiable |
|
||||
|
DS1991L-F5+A1A |
Maxim Integrated Products |
iButtons |
Data Sheet |
Negotiable |
|
||||
|
DS1991L-F5W |
Maxim Integrated Products |
iButtons |
Data Sheet |
Negotiable |
|
||||
|
DS1991L-F5+ |
Maxim Integrated Products |
iButtons |
Data Sheet |
Negotiable |
|
||||
