Datasheet 搜索 > 接口芯片 > Maxim Integrated（美信） > DS2480B+ 数据手册 > DS2480B+ 开发手册 1/17 页
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DS2480B+ 开发手册 - Maxim Integrated（美信）
制造商:
Maxim Integrated（美信）
分类:
接口芯片
封装:
SOIC-8
描述:
MAXIM INTEGRATED PRODUCTS DS2480B+ 芯片, 串行线路驱动器, 2480, SOIC8
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DS2480B+数据手册
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Maxim > Design Support > Technical Documents > Application Notes > 1-Wire® Devices > APP 5273
Maxim > Design Support > Technical Documents > Application Notes > i
Button® > APP 5273
Keywords: 1-wire master, I²C, level translator, 1wire, I2C
APPLICATION NOTE 5273
Understanding and Configuring the DS2483 1-
Wire® Master
By: Bernhard Linke, Principal Member Technical Staff
Dec 22, 2011
Abstract: The DS2483 represents the next generation of integrated 1-Wire masters. With its
configurability, 2-stage power-savings mode, and level translator function, the DS2483 is well suited for
battery-operated applications. This application note explains the operation of the 1-Wire master port,
gives advice on when to deviate from the default configurations, and explains how to determine the drive
capability for a given network.
Introduction
The DS2483 is the latest member of the family of integrated 1-Wire masters (Table 1). The device builds
upon the DS2482 1-Wire masters by adding configurability
and a level shifter, enabling the I²C and 1-
Wire port to operate on different voltages. Battery-operated equipment will benefit from the 2-stage
power-savings mode, where the master function and the 1-Wire bus can be shut down independently.
With just one additional command and register, existing firmware for the DS2482, as described in
application note 3684, "How to Use the DS2482 I²C 1-Wire Master," can easily be adapted to take
advantage of the DS2483's improvements. This application note explains the major features, gives
guidance on how to use them, and provides instructions on how to determine whether the DS2483 can
drive a given 1-Wire network at standard or overdrive speed. Table 1 compares the features of the
DS2483 to other Maxim 1-Wire masters.
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