iButton (TM1991L-F5 )

ibutton Smart Card (TM card, Information Button, Touch Memory) Type: TM1991L-F5 Dimension: diameter 16.25MM, high 5.9MM Function: anti-water, anti-shake, anti-rust; the shell is made by 304 stainless steel, never rust; the chip is made by new TM1990B wafer, unique 64bit serial number of the world. Full compatible with ds1991L-F5 . SPECIAL FEATURES ß 1,152-bit secure read/write, nonvolatile memory ß Secure memory cannot be deciphered without matching 64-bit password ß Memory is partitioned into 3 blocks of 384 bits each ß 64-bit password and ID fields for each memory block ß 512-bit scratchpad ensures data transfer integrity ß Operating temperature range: -40°C to +70°C ß Over 10 years of data retentionlß Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48- bit serial number + 8-bit CRC tester) assures absolute traceability because no two parts are alike ß Multidrop controller for MicroLAN ß Digital identification and information by momentary contact ß Chip-based data carrier compactly stores information ß Data can be accessed while affixed to object ß Economically communicates to bus master with a single digital signal at 16.3k bits per second ß Standard 16 mm diameter and 1-Wire protocol ensure compatibility with iButton family ß Button shape is self-aligning with cup- shaped probes ß Durable stainless steel case engraved with registration number withstands harsh environments