參數(shù)資料
型號(hào)： DS1994
英文描述： 4kb Plus Time Memory iButton
中文描述： 4K位、帶有時(shí)鐘的存儲(chǔ)器iButton®
文件頁(yè)數(shù)： 1/22頁(yè)
文件大?。?/td> 254K
代理商： DS1994
1 of 22
031403
SPECIAL 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
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
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
IO
GND
0.36
0.51
5.89
1993
YYWW REGISTERED RR
61
04
000000FBD804
16.25
17.35
All dimensions shown in millimeters.
ORDERING INFORMATION
DS1994L-F5
F5 MicroCan
DS1994
4kb Plus Time Memory iButton
www.iButton.com
iButton and 1-Wire are registered trademarks of Dallas Semiconductor.
相關(guān)PDF資料
PDF描述
DS1995 16-kbit Memory iButton
DS1995L-F5 16-kbit Memory iButton
DS1996 64kbit Memory iButtonTM
DS1996L-F5 64kbit Memory iButtonTM
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1994-LF5 制造商: 功能描述: 制造商:undefined 功能描述:
DS1994L-F5 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
DS1994L-F5+ 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
DS1994L-F5-W 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated
DS1994-LFS 制造商: 功能描述: 制造商:undefined 功能描述:
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