Maxim iButton Fobs DS1990A-F5 – Green

Maxim iButton Fobs with DS1990A-F5 - Green

DS1990A-F5 w/ Green Fob

Place of Origin: China(Mainland) Part Number: DS1990A-F5-G Brand Name: Dallas / Maxim Integrated
Min. Order Quantity: 100 Pieces Port: Guangzhou Payment Terms: T/T, Western Union, Paypal

Maxim iButton Fobs with DS1990A-F5 – Green

Description

The iButton serial number (DS1990A) is a rugged data carrier that serves as an electronic registration number for automatic identification. Data is transferred serially through the 1-Wire protocol, which requires only a single data lead and a ground return. Every DS1990A is factory lasered with a guaranteed unique 64-bit registration number that allows for absolute traceability. The durable stainless-steel iButton 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 be used easily by human operators. Accessories enable the DS1990A to be mounted on almost any object, including containers, pallets, and bags.

You can replace the data line, address line, control line and power line with a single line so that iButton achieves single line communication through a multi-function device. When the host is powered, iButton gives the response to the host through switching the impedances between 50Ω and 500,000Ω. The lengths of time the signal is pulled down(long or short) show the digital logics. Due to the range of witching impedances is 1-10,000, the resistances of the contact points will not affect the identification of the digital signals.

Key Features

Unique, factory-lasered and tested 64-bit
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 INFORMATION BUTTON family.
Button shape is self-aligning with cupshaped 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.
Stainless steel package with su304-0.3
Resistant to heat, Operating temperature range from -40°C to +70°C
Over 10 years of data retention