Highly reliable data carrier DS1990R serial number iButton

Overview

The DS1990R Serial Number iButton® is a rugged, highly reliable data carrier used to provide electronic registration numbers for automatic identification systems. Data is transmitted serially using the 1-Wire® protocol, requiring only one data line and one return ground. Each DS1990R is factory laser engraved with a unique 64-bit registration number for absolute traceability. The rugged stainless steel iButton package is highly resistant to harsh environments such as dirt, moisture, and shock. The compact button-shaped form factor easily aligns itself with the read/write head, making manual handling of the DS1990R very easy. A variety of accessories make it easy to mount the DS1990R iButton on a variety of objects such as containers, pallets, and bags. The DS1990R is a fully compatible derivative of the DS1990A. The DS1990R is a better choice than the DS1990A for applications where a contact response pulse is critical.

Key Features

Unique, factory laser-engraved 64-bit registration code ensures error-free device selection and absolute traceability, as no two components are alike

Built-in multi-node controller for 1-Wire networks

A “one-touch” digital identification solution

Data can also be read when fixed to an object

Very economical communication with bus master over a single digital signal line at 16.3kbps

Button shape can self-align cup probe

Rugged stainless steel housing with registration code engraved on it, can withstand harsh environments

Easy to install, either by gluing it with a self-adhesive pad, snapping onto its flange, or locking it with a ring that fits snugly around its housing

When the reader is powered on for the first time, it performs an online detection response

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