Evaluates: 1-Wire Slave and iButton Devices
DS9481R USB-to-1-Wire/iButton Adapter
General Description
The DS9481R is a USB-to-1-Wire
M
adapter for easy PC
connectivity to 1-Wire devices. The adapter provides an
RJ11 connector with the signals to communicate with all
1-Wire and iButton
M
devices that support a 3.3V data I/O
level. Additionally, the adapter provides the support and
signaling to program 1-Wire/iButton EEPROM and one-
time programmable (OTP)/EPROM devices. To provide
a total hardware solution, the DS9481R can readily be
used with the DS9120 socket adapter to create a 1-Wire
PC programmer for 1-Wire slave devices (contact factory
for more information). The equivalent slave hardware
solution for the iButton is the DS1402D-DR8.
Features
S
Driver Support for Windows
®
7, Windows Vista
®
,
and Windows XP
®
Operating Systems
S
Enumerates as a Virtual PC COM Port by Use of
the Prolific PL-2303HXD USB-to-UART Bridge IC
S
Emulates the DS2480B 1-Wire Line Driving
Functionality
S
1-Wire OTP/EPROM Programming Provided
Without the Need of an External Power Supply
(12V on OW, 7V on PULSE)
S
3.3V Read/Write Operation to 1-Wire/iButton
Devices
S
RJ11 Interface for Standard Connectivity
Accessories such as the DS9120 Socket Adapter
S
Supports Standard and Overdrive 1-Wire
Communication
S
Provides Strong Pullup to 3.3V
S
Fully Compliant with USB 2.0 Specification
S
Windows XP Certified Logo Drivers
DS9481R USB-to-1-Wire/iButton Adapter
19-5608; Rev 0; 10/10
Ordering Information
+
Denotes lead(Pb)-free and RoHS compliant.
Adapter Contents
1-Wire and iButton are registered trademarks of Maxim
Integrated Products, Inc.
Windows, Windows Vista, and Windows XP are registered
trademarks of Microsoft Corp.
QTY
DESCRIPTION
1
USB-to-1-Wire adapter
Maxim DS9481R-3C7+
1
USB Type A-to-USB Mini-Type B cable
Qualtek Electronics Corp. 3021003-03
PART
TYPE
DS9481R-3C7+
Adapter
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
