19-4895 Rev 8/09 DS1995 16Kb Memory iButton Presence detector acknowledges when reader SPECIAL FEATURES first applies voltage 16384 bits of read/write nonvolatile memory 256-bit scratchpad ensures integrity of data F5 MICROCAN transfer Overdrive mode boosts communication to 142 5.89 kbits per second 0.51 Memory partitioned into 256-bit pages for packetizing data 16.25 Data integrity assured with strict read/write protocols D0 0A 17.35 Operating temperature range from -40C to 000000FBC52B +70 C 1-Wire Over 10 years of data retention COMMON iButton FEATURES DATA GROUND Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48-bit All dimensions are shown in millimeters. serial number + 8-bit CRC tester) assures absolute traceability because no two parts are ORDERING INFORMATION alike PIN- PART TEMP RANGE Multidrop controller for MicroLAN PACKAGE Digital identification and information by DS1995L-F5+ -40 C to +70C F5 MicroCan momentary contact +Denotes a lead(Pb)-free/RoHS-compliant package. Chip-based data carrier compactly stores information EXAMPLES OF ACCESSORIES Data can be accessed while affixed to object DS9096P Self-Stick Adhesive Pad DS9101 Multi-Purpose Clip Economically communicates to bus master with a single digital signal at 16.3 kbits per DS9093RA Mounting Lock Ring second DS9093F Snap-In Fob Standard 16 mm diameter and 1-Wire DS9092 iButton Probe protocol ensure compatibility with iButton iButton DESCRIPTION family The DS1995 Memory iButton operates nearly Button shape is self-aligning with cup-shaped identically to the DS1996. The main differences probes are: 16 Kbits of memory organized as 64 pages of Durable stainless steel case engraved with 32 bytes and a family code of 0A hexadecimal. For registration number withstands harsh further details, refer to the DS1996 data sheet. environments Easily affixed with self-stick adhesive backing, latched by its flange, or locked with a ring pressed onto its rim iButton and 1-Wire are registered trademarks of Maxim Integrated Products, Inc. 1 of 2 DS1995 REVISION HISTORY REVISION PAGES DESCRIPTION DATE CHANGED Updated the Ordering Information table to only show the lead-free version 1 (DS1995-F5+). 070808 Updated the F5 MicroCan marking to match PCN H020201. 1 8/09 Removed the UL 913 bullet from the Common iButton Features section. 1 2 of 2 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.