DS1991 Datasheet | Dallas Semiconductor

FEATURES 1,152-bit secure read/write, nonvolatile memory - Secure memory cannot be deciphered .. 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, or locked with a ring pressed onto its rim Presence detector acknowledges when reader first applies voltage 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 F5 MICROCANTM 5.89 0.36 0.51 c 1993 MON i Button FEATURES - Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48bit serial number + 8-bit CRC tester) assures absolute traceability because no two parts are alike Multidrop controller for Micro LAN Digital identification and information by momentary contact Chip-based data carrier pactly stores information Data can be accessed while affixed to object Economically municates to bus master with a single digital signal at 16.3k bits per second Standard 16 mm diameter and 1-Wire protocol ensure patibility with i Button family Button shape is self-aligning with cupshaped probes Durable stainless steel case engraved with registration number withstands harsh environments YYWW REGISTERED RR 000000FBC52B - - - - - - - - DATA GROUND All dimensions shown in millimeters ORDERING INFORMATION DS1991L-F5 DS9096P DS9101 DS9093RA DS9093F DS9092 F5 Micro Can Self-Stick Adhesive Pad Multi-Purpose Clip Mounting Lock Ring Snap-In Fob i Button Probe EXAMPLES OF ACCESSORIES 1 of 14 DS1991 i Button DESCRIPTION The DS1991 Multi Key i Button 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...