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DS9490B-E00

Description
Interface Modules
CategoryModule/solution   
File Size581KB,6 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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DS9490B-E00 Overview

Interface Modules

DS9490B-E00 Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerMaxim
Product CategoryInterface Modules
RoHSN
ProductAdapters
TypeUSB to 1-Wire
Number of Channels / Ports1 Port
Maximum Data Rate12 Mb/s
Operating Supply Voltage5 V
Maximum Operating Temperature+ 70 C
Dimensions56.82 mm x 24.94 mm x 16.54 mm
Interface Type1-Wire, USB
Minimum Operating Temperature0 C
Operating Supply Current25 mA
AVAILAB
LE
USB to 1-Wire/iButton Adapters
FEATURES
High-Speed 12Mbps Universal Serial Bus
(USB) Interface
Supports Standard and Overdrive 1-Wire
®
Communication
Slew-Rate-Controlled 1-Wire Timing and
Active Pullup for Improved 1-Wire Network
Performance
DS9490R has an RJ11 Interface for
Standard Connectivity Accessories such as
the DS1402D-DR8
DS9490B has an iButton
®
Interface and
Retains a Fixed iButton
Built-In Custom DS2401 Identification Chip
Reads all 1-Wire and iButton Devices.
Writes All Except EPROM 1-Wire/iButton
Devices
DS9490R/DS9490B
TYPICAL OPERATING CIRCUIT
PC
USB
DS9490B
iButton
PC
USB
DS9490R
DS1402D-DR8
ORDERING INFORMATION
PART
DS9490B#
DS9490R#
APPLICATIONS
Software Authorization—Protection against
software piracy by tying software operation to
the presence of iButton hardware.
iButton Initialization and Download—Loggers
like the Thermochron
®
can be missioned and
Functional Diagrams
downloaded.
Demonstration—Demonstrate the features of
iButtons or 1-Wire chips on personal
computers.
Development—Aid development of 1-Wire
applications by providing a PC interface to
verify device contents and state.
TYPE
USB Single F5 iButton Holder
with Protective Cap
USB-to-1-Wire RJ11
#Denotes a RoHS-compliant device that may include lead(Pb) that is
exempt under the RoHS requirements.
PACKAGING/SHIPPING
INFORMATION
The part is shipped individually in an antistatic
bag.
DESCRIPTION
The DS9490B is a USB bridge and holder for a single F5-size iButton. The iButton is securely held behind
a latched door. The DS9490R is a USB bridge with 1-Wire RJ11 interface to accommodate 1-Wire
receptacles and networks. For a list of suitable 1-Wire network cables, refer to the
Connectivity Matrix
table in the DS1402x 1-Wire network cables data sheet. Both adapters are based on the DS2490 USB-to-
1-Wire bridge chip. Free software drivers for Windows
®
-based PCs can be downloaded from
www.maxim-ic.com/1-Wiredrivers.
Pin Configurations appear at end of data sheet.
Functional Diagrams continued at end of data sheet.
UCSP is a
and Thermochron are
Integrated Products,
Maxim Integrated Products, Inc.
1-Wire, iButton,
trademark of Maxim
registered trademarks of
Inc.
Windows is a registered trademark 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.
19-4881; Rev 6/11

DS9490B-E00 Related Products

DS9490B-E00 DS9490B DS9490B-MAC
Description Interface Modules Interface Modules Interface Modules
Product Attribute Attribute Value Attribute Value Attribute Value
Manufacturer Maxim Maxim Maxim
Product Category Interface Modules Interface Modules Interface Modules
Product Adapters Adapters Adapters
Type USB to 1-Wire USB to 1-Wire USB to 1-Wire
Number of Channels / Ports 1 Port 1 Port 1 Port
Maximum Data Rate 12 Mb/s 12 Mb/s 12 Mb/s
Operating Supply Voltage 5 V 5 V 5 V
Maximum Operating Temperature + 70 C + 70 C + 70 C
Dimensions 56.82 mm x 24.94 mm x 16.54 mm 56.82 mm x 24.94 mm x 16.54 mm 56.82 mm x 24.94 mm x 16.54 mm
Interface Type 1-Wire, USB 1-Wire, USB 1-Wire, USB
Minimum Operating Temperature 0 C 0 C 0 C
Operating Supply Current 25 mA 25 mA 25 mA
RoHS N N -
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