Datasheet > DS9490R_11

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

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DS9490R_11 数据手册

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

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

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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