Datasheet > DS9490R

DS9490R

更新时间： 2024-11-12 22:25:27

品牌	Logo	应用领域
达拉斯 - DALLAS		/
页数	文件大小	规格书
5页	210K
描述
USB to 1-Wire/iButton Adapter

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数据手册

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DS9490R 数据手册

DS9490R/DS9490B

USB to 1-Wire/iButton Adapter

www.maxim-ic.com

FEATURES

TYPICAL OPERATING CIRCUIT

C High-Speed 12Mbps Universal Serial Bus

(USB) Interface

C Supports Standard and Overdrive 1-Wire^®

Communication

USB

DS9490B

DS9490R

iButton

C Slew-Rate-Controlled 1-Wire Timing and

Active Pullup for Improved 1-Wire Network

Performance

C DS9490R has an RJ11 Interface for Standard

Connectivity Accessories such as the

DS1402D-DR8

C DS9490B has an iButton^®Interface and

Retains a Fixed iButton

DS1402D-DR8

C Built-In Custom DS2401 Identification Chip

C Reads all 1-Wire and iButton Devices. Writes

All Except EPROM 1-Wire/iButton Devices

APPLICATIONS

C Software Authorization—Protection against

software piracy by tying software operation to

the presence of iButton hardware.

ORDERING INFORMATION

PART

DESCRIPTION

USB Single F5 iButton Holder

with Protective Cap

C iButton Initialization and Download—

Loggers like the Thermochron^®can be

missioned and downloaded. Monetary

iButtons can be refilled with money.

C Demonstration—Demonstrate the features of

iButtons or 1-Wire chips on personal

computers.

DS9490B

DS9490R

USB to 1-Wire RJ11

PACKAGING/SHIPPING

INFORMATION

The part is shipped individually in an anti-static

bag.

C 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. The DS1402D-DR8 (Blue Dot™) can readily be used in conjunction with

the DS9490R to create an iButton PC reader. Both adapters are based on the DS2490 USB to 1-Wire

bridge chip.

PC software drivers for Windows^®98, Windows 2000, Windows ME, and Windows XP can be found on

the iButton website under software support at: http://www.ibutton.com/software/tmex/index.html

1-Wire, iButton, and Thermochron are registered trademarks of

1 of 5

050503

Dallas Semiconductor.

Blue Dot is a trademark of Dallas Semiconductor.

Windows is a registered trademark of Micosoft Corp.

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