DS1993L-F5

iButton DESCRIPTION

The DS1992/DS1993 memory iButtons (hereafter referred to as DS199_) are rugged read/write data carriers that act as a localized database, easily accessible with minimal hardware. The nonvolatile memory and optional timekeeping capability offer a simple solution to storing and retrieving vital information pertaining to the object to which the iButton is attached. Data is transferred serially through the 1-Wire protocol that requires only a single data lead and a ground return.

SPECIAL FEATURES
â–  4096 bits of Read/Write Nonvolatile
Memory (DS1993)
â–  1024 bits of Read/Write Nonvolatile
Memory (DS1992)
â–  256-bit Scratchpad Ensures Integrity of Data
Transfer
â–  Memory Partitioned into 256-bit Pages for
Packetizing Data
â–  Data Integrity Assured with Strict
Read/Write Protocols
■ Operating Temperature Range from -40°C to
+70°C
â–  Over 10 years of data retention

COMMON iButton FEATURES
â–  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
â–  Multidrop Controller for MicroLAN
â–  Digital Identification and Information by
Momentary Contact
â–  Chip-Based Data Carrier Compactly Stores
Information
â–  Data Can be Accessed While Affixed to
Object
â–  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
â–  Button Shape is Self-Aligning with CupShaped Probes
â–  Durable Stainless Steel Case Engraved with
Registration Number Withstands Harsh
Environments
â–  Easily Affixed with Self-Stick Adhesive
Backing, Latched by its Flange, or Locked
with a Ring Pressed onto its Rim
â–  Presence Detector Acknowledges When
Reader First Applies Voltage
â–  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