DS1990A Magnetic Ibutton Key Fob / holders in Cabinet Lock and Sauna Locker Room

Product Details:

Place of Origin:	Shenzhen, CHINA
Brand Name:	A.N.G
Certification:	CE,ISO, SGS，ROHS
Model Number:	AC-TM106

Payment & Shipping Terms:

Minimum Order Quantity:	500pcs
Price:	USD1.10-1.18/pc(for reference)
Packaging Details:	200pcs/box,2000pcs/carton,10000pcs 63KG
Delivery Time:	7-15 Days
Payment Terms:	T/T,Paypal,Western Union, MoneyGram
Supply Ability:	1000,000pcs per month

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Detailed Product Description

Brand Name:	A.N.G	Item Type:	DS1990A Magnetic IButton Keys
Material:	Stainless Steel Package With Su304-0.3、ABS	Diamension:	Dia5.89mm * 16.25mm
Intend For:	DS1990A	Unit Weight:	About 4g
Color:	Red，Green，blue，yellow，black，etc	Failure Rate:	1 /100,000 Times ( Used Properly)
Feature:	Resistant To Heat, Operating Temperature Range From -40°C To +70°C
High Light:	ibutton ring , ibutton holder

DS1990A Magnetic Ibutton Key Fob / holders in Cabinet Lock and Sauna Locker Room

Description

DS1990A Serial Number iButton is a rugged data carrier that acts as an electronic registration number for automatic identification. The DS1990A consists of a factory–lasered, 64–bit ROM that includes an unique 48–bit serial number, an 8–bit CRC and an 8–bit Family Code (01h). Data is transferred serially via the 1–Wire protocol which requires only a single data lead and aground return. The DS1990A is fully compatible with the DS1990 Serial Number iButton but provides the addi-tional 1–Wire protocol capability that allows the Search ROM command to be interpreted by DS1990A and therefore allows multiple DS1990A devices to reside on a single data line.

The durable MicroCan package is highly resistant to environmental hazards such as dirt, moisture and shock. Its compact coin–shaped profile is self–aligning with mating receptacles, allowing the DS1990A to bused easily by human operators. Accessories permit the DS1990A to be mounted on plastic key tabs, photo ID badges, printed circuit boards or any smooth surface of an object. Applications include access control, work–in–progress tracking, tool management and inventory control.

DS1990A SPECIAL FEATURES

•Upgrade of DS1990 allows multiple Serial Number

iButtons to reside on a common bus

•Unique 48–bit serial number

•Low–cost electronic key for access control

•8–bit CRC for checking data integrity

•Can be read in less than 5 ms

•Operating temperature range of –40°C to +85°C

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 by momentary contact

•Chip–based data carrier compactly stores information

•Data can be accessed while affixed to an object

•Economically communicates to bus master with a single digital signal at 16.3k bits per second

•Standard 16 mm 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

Datasheets	DS1990A
Product Photos	DS1990A-F5+
Mfg Application Notes	Using a UART to Implement a 1-Wire Bus Master Understanding and Using Cyclic Redundancy Checks with Maxim 1-Wire and iButton Products Reading and Writing 1-Wire® Devices Through Serial Interfaces 1-Wire Communication Through Software Guidelines for Reliable Long Line 1-Wire Networks 1-Wire Software Resource Guide Device Description Software Methods to Achieve Robust 1-Wire® Communication in iButton® Applications 1-Wire Search Algorithm Using the DS2480B Serial 1-WireÂ® Line Driver Advanced 1-Wire Network Driver White Paper 2: Using the 1-Wire® Public Domain Kit White Paper 5: Using 1-Wire APIs for Data Sheet Commands What Is an iButton Device? Understanding the DS1WM Synthesizable 1-Wire Bus Master Create a 1-Wire Master with Xilinx PicoBlaze
Product Training Modules	Lead (SnPb) Finish for COTS Long-Term Supply Program
RoHS Information	IButton RoHS Compliance Plan
Standard Package	1
Category	Memory Cards, Modules
Family	Specialized
Series	iButton®
Memory Type	ROM
Memory Size	8B
Speed	*
Technology	*
Operating Temperature	*
Dynamic Catalog	iButton® Series
Other Names	DS1990AF5