ENGLISH 简体中文 日本語 한국어  

DS2482-100, DS2482S-100
Single-Channel 1-Wire Master

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


  QuickView     Technical Documents     Ordering Info     More Information     All  
Data Sheet
FULL DATA SHEET (PDF, 280kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Errata
  • Errata DS2482-100 2482-100A2.pdf 
  • Description
    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.

    Key Features   Applications/Uses
    • 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 Three-Bit 1-Wire IO Sequences
    • Standard and Overdrive 1-Wire Communication Speeds
    • Slew Controlled 1-Wire Edges
    • Selectable 1-Wire Slave Presence-Pulse Falling Edge Masking to Control Fast Edges on the 1-Wire Line
    • Supports Low-Impedance 1-Wire Strong Pullup for EEPROMs, Temp Sensors, or Other 1-Wire Slaves That Have Momentary High Current Modes
    • 2 Address Inputs for I²C Address Assignment
    • Operating Range: 2.9V to 5.5V, -40°C to +85°C
    • 8-Pin, 150-mil SO Package, UCSP™ Package

     
  • Cell Phones/PDAs
  • Industrial Sensors
  • Medical Instruments
  • Printers

    Key Specifications:   1-Wire Interface Products
    Part Number Functions Features Supply Voltage (V) RoHS Available Package Smallest Available Package (max w/pins) (mm2) Price*
    DS2482-100 
    1-Wire Bridge
    I2C to 1-Wire Bus Master with single 1-Wire I/O channel
    2.9 to 5.5 Yes SOIC/8
    WLP/9
    31 $0.62 @ 1k
    See All 1-Wire Interface Products (5)
    Notes:
    *This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Application Notes
  • App Note 3438: Serial Digital Data Networks - DS2482S-100
  • App Note 3684: How to Use the DS2482 I²C 1-Wire® Master - DS2482-100
  • App Note 3829: Determining the Recovery Time for Multiple-Slave 1-Wire Networks - DS2482-100
  • App Note 3989: Add Control, Memory, Security, and Mixed-Signal Functions with a Single Contact - DS2482-100
  • App Note 4206: Choosing the Right 1-Wire® Master for Embedded Applications - DS2482-100

    Evaluation Kits
    none

    Design Guides
  • 1-Wire® PRODUCTS (PDF)

    Reliability Reports
  • Reliability Report: DS2482-100.pdf
  • Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-5 of 5

    DS2482-100 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    DS2482X-100+T  
    WLP;9 pin;

    Use pkgcode/variation: W92A1+1*
    -40°C to +85°C See data sheet
    DS2482S-100 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    DS2482S-100  
    SOIC;8 pin;31 mm²
    Dwg: 56-G2008-001C (PDF)
    Use pkgcode/variation: S8-4*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS2482S-100/T&R  
    SOIC;8 pin;31 mm²
    Dwg: 56-G2008-001C (PDF)
    Use pkgcode/variation: S8-4*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS2482S-100+  
    SOIC;8 pin;31 mm²
    Dwg: 56-G2008-001C (PDF)
    Use pkgcode/variation: S8+4*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS2482S-100+T&R  
    SOIC;8 pin;31 mm²
    Dwg: 56-G2008-001C (PDF)
    Use pkgcode/variation: S8+4*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • New Product Press Release 2004-08-11 

    Related Products
    DS1WM Synthesizable 1-Wire Bus Master
    DS1482 1-Wire Level Shifter and Line Driver with Load Sensor
    DS2480B Serial to 1-Wire Line Driver
    DS2482-800, DS2482S-800 Eight-Channel 1-Wire Master

    Didn't Find What You Need?
  • Next Day Product Selection Assistance from Applications Engineers
  • Parametric Search
  • Applications Help
  •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

     Data Sheet 
     Errata 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

     Price and Availability 
     Samples 
     Buy Online 
     Package Information 
     Lead-Free Information 

     Related Products 
     Notes and Comments 
     Evaluation Kits 

    2007-09-10
    This page last modified: 2007-09-10




             



       Copyright © 2008 by Maxim Integrated Products, Dallas Semiconductor    Legal Notices    Privacy Policy   

    ">