DS2482-100 Datasheet and Product Info | Analog Devices
DS2482-100
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DS2482-100

Single-Channel 1-Wire Master

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I²C to 1-Wire Bridge Device that Interfaces Directly to Standard (100kHz max) or Fast (400kHz max) I²C Masters to Perform Bidirectional Protocol Conversion Between the I²C Master and Any Downstream 1-Wire Slave Device

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Part Models 4
1ku List Price Starting From $1.18
Features
  • Allows Easy Interface Between a I2C Microport and a 1-Wire Slave
    • I2C Host Interface Supports 100kHz and 400kHz I2C Communication Speeds
    • 1-Wire Master IO with Selectable Active or Passive 1-Wire Pullup
    • Provides Reset/Presence, 8-Bit, Single-Bit, and 3-Bit 1-Wire IO Sequences
    • Standard and Overdrive 1-Wire Communication Speeds
    • Two Address Inputs for I2C Address Assignment
  • Minimizes Line Noise Reducing System EMI
    • Slew-Controlled 1-Wire Edges
  • Supports EEPROMs, Temperature Sensors, or Other 1-Wire Slaves That Have Momentary High Source Current Modes
    • Strong 1-Wire Pullup Provided by an Internal Low-Impedance Signal Path
    • PCTLZ Output to Optionally Control an External MOSFET for Stronger Pullup Requirements
  • Operating Range: 2.9V to 5.5V, -40°C to +85°C
  • 8-Pin (150 mils) SO and 9-Bump WLP Packages
Additional Details
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The DS2482-100 is an I²C to 1-Wire® bridge device that interfaces directly to standard (100kHz max) or fast (400kHz max) I²C masters to perform bidirectional protocol conversion between the I²C master and any downstream 1-Wire slave devices. Relative to any attached 1-Wire slave device, the DS2482-100 is a 1-Wire master. Internal factory trimmed timers relieve the system host processor from generating time-critical 1-Wire waveforms, supporting both standard and Overdrive 1-Wire communication speeds. To optimize 1-Wire waveform generation, the DS2482-100 performs slew rate control on rising and falling 1-Wire edges and provides additional programmable features to match drive characteristics to the 1-Wire slave environment. Programmable strong pullup features support 1-Wire power delivery to 1-Wire devices such as EEPROMs and sensors. The DS2482-100 combines these features with an output to control an external MOSFET for enhanced strong pullup application. The I²C slave address assignment is controlled by two binary address inputs, resolving potential conflicts with other I²C slave devices in the system.

Applications

  • Cell Phones/PDAs
  • Industrial Sensors
  • Medical Instruments
  • Printers
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file View Data Sheet (Rev.10)
Part Models 4
1ku List Price Starting From $1.18
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DS2482-100

Documentation

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Data Sheet

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PDF

UPDATED Jan 13, 2015
English

DS2482100: Single-Channel 1-Wire Master Data Sheet (Rev.10)

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PDF

UPDATED Jan 19, 2010
Chinese

DS2482100: 单通道1-Wire主控制器 Data Sheet (Rev.8)

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UPDATED Apr 8, 2010
Japanese

DS2482100: シングルチャネル1-Wireマスター Data Sheet (Rev.8)

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Reliability Data

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UPDATED Jan 12, 2023
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DS2482-100 Reliability Data redirect icon

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Design Notes Page

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UPDATED Aug 21, 2007
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利用1-Wire®链路功能获取位置信息—一种确定器件物理地址的简单信令协议方法 redirect icon

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UPDATED Aug 22, 2007
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1-Wire®のチェーン機能を活用した位置情報の取得—シンプルなシグナリングとプロトコルにより、デバイスの物理的な位置を特定 redirect icon

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UPDATED Oct 5, 2015
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Extending I2C Communication Distance with the DS28E17 redirect icon

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UPDATED Jan 13, 2016
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DS28E17によるI2C通信距離の延長 redirect icon

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UPDATED Mar 15, 2019
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How to Multiplex a 1-Wire Host into Numerous Channels redirect icon

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UPDATED Mar 15, 2019
Chinese
如何将1-Wire主机复用到多个通道 redirect icon

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UPDATED Mar 15, 2019
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1-Wireのホストを多数のチャンネルに対応するように多重化する方法 redirect icon

Application Note

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UPDATED Dec 22, 2011
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Understanding and Configuring the DS2483 1-Wire® Master redirect icon

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UPDATED Apr 1, 2013
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理解和配置DS2483 1-Wire®主机 redirect icon

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Documentation

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

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Software & Part Ecosystem

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Serial to 1-Wire Line Driver

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Evaluation Kit

Evaluation Kits 1

DS28EA00EVKIT

Evaluation Kit for the DS28EA00

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DS28EA00EVKIT

Evaluation Kit for the DS28EA00

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DS28EA00EVKIT
Evaluation Kit for the DS28EA00

Features and Benefits

  • Easy Setup
  • Stand-Alone EV Board
    • Contains Three Separate, Breakable Subsections with a DS28EA00 Per Subsection
    • The Dipswitch Block on Each EV Board Subsection Routes Physical Chain-Mode
    • Connections Between Chips When Used as a Stand-Alone Board
    • EV Board's Subsections are Breakable Into Three Separate Boards Each of Which Evaluates a Single DS28EA00 or, When Cabled Together, Evaluate Chain-Mode Searching
    • LEDs Give Visual Indicators of PIO Activity
    • 6-Pin Terminal Strip Allows PIO Testing Outside of Chain Mode
  • PC Connectivity Included
  • RoHS Compliant
  • Free Downloadable Evaluation Software Available
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Product Detail

The DS28EA00 evaluation system (EV system) consists of a single evaluation kit (EV kit) that includes an evaluation board (EV board) made up of three subsections that can be broken/snapped off into three independently exercisable boards. See Figure 1 (in the full data sheet) for a picture of the standalone EV board and Figure 2 (in the full data sheet) for a picture of the EV board snapped and cabled together. Three DS28EA00 temperature chips with GPIO and sequence detect can be found on the EV board, one per subsection. Also included in the kit are connectivity items, such as serial cables, a 1-Wire® USB adapter, and jumpers. Free evaluation software, the OneWireViewer, is available for download from the web page listed in the Support Resources (in the full data sheet) section.

Since one of the major features of the DS28EA00 is detection of physical sequence, a block of dip switches are provided on each subsection of the EV board to re-order the physical connection between the chips. Optionally, the customer can break off the subsections of the eval board, connect them together with the provided cables, and re-order the physical sequence of the DS28EA00s that way. The OneWireViewer evaluation software can then be used to exercise the functionality of the chips and provide a way for an evaluator to see the actual physical connection sequence of the chips. The algorithm to detect the connection order is called chain mode. More information on chain mode can be found in Application Note 4037.

Applications

  • Any Rack-Based Electronic System
  • Climate Control
  • Data communication equipment
  • Process Temperature Monitoring
  • Servers
  • Wireless Basestations

Evaluation Kits1

DS28EA00EVKIT

Evaluation Kit for the DS28EA00

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