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DS9481R USB-to-1-Wire/iButton Adapter
Evaluates: 1-Wire Slave and iButton Devices
General Description
The DS9481R is a USB-to-1-Wire
connectivity to 1-Wire devices. The adapter provides an
RJ11 connector with the signals to communicate with all
1-Wire and iButton
devices that support a 3.3V data I/O
M
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.
QTY
USB-to-1-Wire adapter
1
Maxim DS9481R-3C7+
USB Type A-to-USB Mini-Type B cable
1
Qualtek Electronics Corp. 3021003-03
1-Wire and iButton are registered trademarks of Maxim
Integrated Products, Inc.
Windows, Windows Vista, and Windows XP are registered
trademarks of Microsoft Corp.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim's website at www.maximintegrated.com.
adapter for easy PC
M
Adapter Contents
DESCRIPTION
S Driver Support for Windows
and Windows XP
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
PART
DS9481R-3C7+
+Denotes lead(Pb)-free and RoHS compliant.
DS9481R USB-to-1-Wire/iButton Adapter
Features
®
7, Windows Vista
®
Operating Systems
Ordering Information
TYPE
Adapter
19-5608; Rev 0; 10/10
®
,
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Table of Contents
Related Manuals for Maxim Integrated DS9481R
Summary of Contents for Maxim Integrated DS9481R
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Page 1: Ordering Information
Functionality time programmable (OTP)/EPROM devices. To provide S 1-Wire OTP/EPROM Programming Provided a total hardware solution, the DS9481R can readily be Without the Need of an External Power Supply used with the DS9120 socket adapter to create a 1-Wire (12V on OW, 7V on PULSE) PC programmer for 1-Wire slave devices (contact factory S 3.3V Read/Write Operation to 1-Wire/iButton... -
Page 2: Component List
DS9481R USB-to-1-Wire/iButton Adapter Evaluates: 1-Wire Slave and iButton Devices Component List DESIGNATION DESCRIPTION DESIGNATION DESCRIPTION 4.7FF, 16V Y5V ceramic 220W, 2000mA ferrite chips (0805) FB1, FB2 C1, C6, C21 capacitors (0805) Murata BLM21PG221SN1D TDK Corp. C2012Y5V1C475Z 6-position, right-angle, PCB- mounted jack 2.2FF, 16V Y5V ceramic... - Page 3 Panasonic ECG ERJ-3EKF3012V 1.8V comparator (5 SOT23) 50kI Q1%, 1/10W SMD STMicroelectronics TS3021ILT resistor (0603) — PCB: DS9481R REV A3 Panasonic ECG ERJ-3EKF4992V *EP = Exposed pad. TinyLogic is a registered trademark of Fairchild Semiconductor. 0.12A, 30V PTC resettable fuse (1206)
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Page 4: Quick Start
Prolific_DriverInstaller_v110.EXE or the latest the enumeration of the virtual COM port by inserting version. the DS9481R into a spare USB port on the com- c) Follow the directions of the Install Wizard until puter. Determine the COM port by looking in Control Finish is reached for the PL-2303 USB-to-serial Panel→System→Hardware→Device Manager and... - Page 5 RJ11 Pinout Table 1 and Figure 3 show the RJ11 pinout mounted on the DS9481R PCB at J1. The RJ11 pin 1 can supply 3.3V and can be used for auxiliary board power. The GND is the ground of the 3.3V supply. The signal OW (DATA) stands for the 1-Wire data bus.
- Page 6 DS9481R USB-to-1-Wire/iButton Adapter Evaluates: 1-Wire Slave and iButton Devices Figure 4. DS9481R Adapter Board Schematic Maxim Integrated...
- Page 7 DS9481R USB-to-1-Wire/iButton Adapter Evaluates: 1-Wire Slave and iButton Devices Figure 5. DS9481R Adapter Enclosure Dimensions Maxim Integrated...
- Page 8 DS9481R USB-to-1-Wire/iButton Adapter Evaluates: 1-Wire Slave and iButton Devices Figure 6. DS9481R Adapter Board—Composite Layout Maxim Integrated...
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Page 9: Revision History
— Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
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