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DS9490R_11 PDF预览

DS9490R_11

更新时间: 2024-11-13 09:56:59
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
6页 228K
描述
USB to 1-Wire/iButton Adapters High-Speed 12Mbps Universal Serial Bus (USB) Interface

DS9490R_11 数据手册

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19-4881; Rev 6/11  
DS9490R/DS9490B  
USB to 1-Wire/iButton Adapters  
FEATURES  
TYPICAL OPERATING CIRCUIT  
. High-Speed 12Mbps Universal Serial Bus  
(USB) Interface  
. Supports Standard and Overdrive 1-Wire®  
Communication  
USB  
PC  
DS9490B  
iButton  
. 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  
USB  
PC  
DS9490R  
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  
ORDERING INFORMATION  
PART  
TYPE  
USB Single F5 iButton Holder  
with Protective Cap  
DS9490B#  
APPLICATIONS  
DS9490R# USB-to-1-Wire RJ11  
#Denotes a RoHS-compliant device that may include lead(Pb) that is  
exempt under the RoHS requirements.  
. 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  
downloaded.  
PACKAGING/SHIPPING  
INFORMATION  
The part is shipped individually in an antistatic  
bag.  
. 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.  
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.  
1-Wire, iButton, and Thermochron are registered trademarks of Maxim Integrated Products, Inc.  
Windows is a registered trademark of Microsoft Corp.  
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