iButton. DS1995 Datasheet

DS1995 Datasheet PDF


Part

DS1995

Description

16Kb Memory iButton

Manufacture

Maxim Integrated

Page 2 Pages
Datasheet
Download DS1995 Datasheet


DS1995 Datasheet
19-4895; Rev 8/09
SPECIAL FEATURES
16384 bits of read/write nonvolatile memory
256-bit scratchpad ensures integrity of data
transfer
Overdrive mode boosts communication to 142
kbits per second
Memory partitioned into 256-bit pages for
packetizing data
Data integrity assured with strict read/write
protocols
Operating temperature range from -40C to
+70C
Over 10 years of data retention
COMMON iButton FEATURES
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
Multidrop controller for MicroLAN
Digital identification and information by
momentary contact
Chip-based data carrier compactly stores
information
Data can be accessed while affixed to object
Economically communicates to bus master
with a single digital signal at 16.3 kbits per
second
Standard 16 mm diameter and 1-Wire®
protocol ensure compatibility with iButton
family
Button shape is self-aligning with cup-shaped
probes
Durable stainless steel case engraved with
registration number withstands harsh
environments
Easily affixed with self-stick adhesive backing,
latched by its flange, or locked with a ring
pressed onto its rim
DS1995
16Kb Memory iButton
Presence detector acknowledges when reader
first applies voltage
F5 MICROCAN
5.89
0.51
16.25
D0 0A
000000FBC52B
1-Wire
17.35
DATA GROUND
All dimensions are shown in millimeters.
ORDERING INFORMATION
PART
TEMP RANGE
PIN-
PACKAGE
DS1995L-F5+ -40C to +70C F5 MicroCan
+Denotes a lead(Pb)-free/RoHS-compliant package.
EXAMPLES OF ACCESSORIES
DS9096P
Self-Stick Adhesive Pad
DS9101
Multi-Purpose Clip
DS9093RA
Mounting Lock Ring
DS9093F
Snap-In Fob
DS9092
iButton Probe
iButton DESCRIPTION
The DS1995 Memory iButton operates nearly
identically to the DS1996. The main differences
are: 16 Kbits of memory organized as 64 pages of
32 bytes and a family code of 0A hexadecimal. For
further details, refer to the DS1996 data sheet.
iButton and 1-Wire are registered trademarks of Maxim Integrated Products, Inc.
1 of 2

DS1995 Datasheet
REVISION HISTORY
REVISION
DATE
DESCRIPTION
Updated the Ordering Information table to only show the lead-free version
070808 (DS1995-F5+).
Updated the F5 MicroCan marking to match PCN H020201.
8/09 Removed the UL#913 bullet from the Common iButton Features section.
DS1995
PAGES
CHANGED
1
1
1
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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.


Features Datasheet pdf 19-4895; Rev 8/09 SPECIAL FEATURES  16384 bits of read/write nonvolatile me mory  256-bit scratchpad ensures int egrity of data transfer  Overdrive m ode boosts communication to 142 kbits p er second  Memory partitioned into 2 56-bit pages for packetizing data  D ata integrity assured with strict read/ write protocols  Operating temperatu re range from -40C to +70C  Ov er 10 years of data retention COMMON iB utton FEATURES  Unique, factory-lase red and tested 64-bit registration numb er (8-bit family code + 48-bit serial n umber + 8-bit CRC tester) assures absol ute traceability because no two parts a re alike  Multidrop controller for M icroLAN  Digital identification and information by momentary contact  Ch ip-based data carrier compactly stores information  Data can be accessed wh ile affixed to object  Economically communicates to bus master with a singl e digital signal at 16.3 kbits per seco nd  Standard 16 mm diameter and 1-Wire® protocol ensure com.
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