Datasheet > DS1904

DS1904

更新时间： 2024-02-28 06:19:34

品牌	Logo	应用领域
达拉斯 - DALLAS		/
页数	文件大小	规格书
12页	75K
描述
RTC iButton

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中文翻译

获取价格

数据手册

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DS1904 数据手册

PRELIMINARY

DS1904

RTC iButton

www.iButton.com

SPECIAL FEATURES

ꢀ 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 (application pending)

ꢀ Real-Time Clock/calendar in binary format

ꢀ Uses the same binary time/date representation

as the DS1994 but with 1 second resolution

ꢀ Clock accuracy is better than ± 2 minutes per

month at 25°C

ꢀ Operating temperature range from -40°C to

+70°C

ꢀ Over 10 years of operation

F5 MicroCan

5.89

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

0.36

0.51

16.25

YYWW REGISTERED RR

17.35

ꢀ Multidrop controller for MicroLAN

ꢀ Digital identification and information by

momentary contact

000000FBC52B

DATA

ꢀ Chip-based data carrier compactly stores in-

formation

GROUND

ꢀ Data can be accessed while affixed to object

ꢀ Economically communicates to host with a

single digital signal at 16.3k bits per second

ꢀ Standard 16 mm diameter and 1-Wire proto-

col ensure compatibility with iButton Device

family

ꢀ Button shape is self-aligning with cup-shaped

probes

ꢀ Durable stainless steel case engraved with

registration number withstands harsh envi-

ronments

All dimensions are shown in millimeters

ORDERING INFORMATION

DS1904L-F5

F5 MicroCan

EXAMPLES OF ACCESSORIES

DS9096P

DS9101

DS9093RA

DS9093A

DS9092

Self-Stick Adhesive Pad

Multi-Purpose Clip

Mounting Lock Ring

Snap-In Fob

iButton Probe

ꢀ Easily affixed with self-stick adhesive back-

ing, latched by its flange, or locked with a

ring pressed onto its rim

iButton DESCRIPTION

The DS1904 RTC iButton is a rugged real-time clock module that can be accessed with minimal

hardware. Data is transferred serially via the 1-Wire protocol, which requires only a single data lead and a

ground return. The DS1904 contains a unique 64-bit factory-lasered ROM and a real-time clock/calendar

implemented as a binary counter. The durable MicroCan package is highly resistant to environmental

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中文翻译

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与DS1904相关器件

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DS1904_11	MAXIM	获取价格	Real-Time Clock/calendar in binary format RTC iButton Over 10 years of operation
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DS1921	DALLAS	获取价格	High-Resolution Thermochron iButton
DS1921	TTELEC	获取价格	Ball Flow Indicator
DS1921G	DALLAS	获取价格	Thermochron iButton