DS1994 Datasheet | Dallas Semiconductor

FEATURES 4096 bits of Read/Write Nonvolatile Memory - 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 - Contains Real-Time Clock/Calendar in Binary Format - Interval Timer Can Automatically Accumulate Time When Power is Applied - Programmable Cycle Counter can Accumulate the Number of System Power On/Off Cycles - Programmable Alarms Can Be Set to Generate Interrupts for Interval Timer, Real Time Clock, and/or Cycle Counter - Write-Protect Feature Provides Tamperproof Time Data - Programmable Expiration Date That Limits Access to SRAM and Timekeeping - Clock Accuracy is Better Than ±2 Minutes/ Month at 25°C - Operating Temperature Range from -40°C to +70°C - Over 10 Years of Data Retention - - - - - - - - - Data Can Be Accessed While Affixed to Object Economically municates to Bus Master with a Single Digital Signal at 16.3kbps Standard 16mm Diameter and 1-Wire® Protocol Ensure patibility with i Button 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 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 MON i Button® 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 Micro LAN Digital Identification and Information by Momentary Contact Chip-Based Data Carrier pactly Stores Information IO GND 000000FBD804 All dimensions shown in...