DS1992 Datasheet, PDF (1/17 Pages) Dallas Semiconductor – 1kbit/4kbit Memory iButtonTM DS1994 4-kbit Plus Time Memory iButtonTM

www.iButton.com
SPECIAL FEATURES
§ 4096 bits of Read/Write Nonvolatile
Memory (DS1993)
§ 1024 bits of Read/Write Nonvolatile
Memory (DS1992)
§ 256-bit Scratchpad Ensures Integrity of Data
Transfer
§ Memory Partitioned into 256-bit Pages for
Packetizing Data
§ 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 +
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 16.3kbps
§ Standard 16mm 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
DS1992/DS1993
1kb/4kb Memory iButton
§ 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 MICROCAN
5.89
0.36
0.51
© 1993
YYWW REGISTERED RR
DD
06
000000FBD804
16.25
17.35
IO
GND
All dimensions shown in millimeters.
ORDERING INFORMATION
DS1992L-F5
F5 MicroCan
DS1993L-F5
F5 MicroCan
EXAMPLES OF ACCESSORIES
DS9096P Self-Stick Adhesive Pad
DS9101 Multipurpose Clip
DS9093RA Mounting Lock Ring
DS9093F Snap-In Fob
DS9092 iButton Probe
1-Wire and iButton are registered trademarks of Dallas Semiconductor.
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