Rainbow Electronics DS1995 User Manual
DS1995
16-kbit Memory iButton
www.dalsemi.com
1993
TM
SPECIAL FEATURES
§ 16384 bits of read/write nonvolatile memory
§ 256-bit scratchpad ensures integrity of data
transfer
§ 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 (application pending)
§ Overdrive mode boosts communication to
142 kbits per second
F5 MICROCAN
TM
§ Memory partitioned into 256-bit pages for
packetizing data
0.36
5.89
0.51
YYWW REGISTERED RR
D0
000000FBC52B
c
0A
16.25
17.35
§ Data integrity assured with strict read/write
protocols
§ Operating temperature range from -40°C to
+70°C
§ Over 10 years of data retention
COMMON iButton 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 MicroLAN
TM
§ 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 16.3k bits 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
§ Presence detector acknowledges when reader
first applies voltage
1 of 1 071999
DATA
GROUND
All dimensions are shown in millimeters.
ORDERING INFORMATION
DS1995L–F5 F5 MicroCan
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 please refer to the DS1996
data sheet.
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