ENGLISH • 简体中文 • 日本語 • 한국어  

    Login | Register 


   
 
Enter keywords or part number    


What's New Products Solutions Design AppNotes Support Sales About Us Members

Maxim > Products > [Interface and Interconnect] 
MAX13485E, MAX13486E
Half-Duplex RS-485/RS-422 Transceivers in µDFN

Industry's Smallest RS-485 Transceiver with Enhanced ESD Protection


  QuickView     Technical Documents     Ordering Info     More Information     User Comments (0)     All  
Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 264kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX13485E/MAX13486E +5V, half-duplex, ±15kV ESD-protected RS-485 transceivers feature one driver and one receiver. These devices include fail-safe circuitry, guaranteeing a logic-high receiver output when receiver inputs are open or shorted. The receiver outputs a logic-high if all transmitters on a terminated bus are disabled (high impedance). The MAX13485E/MAX13486E include a hot-swap capability to eliminate false transitions on the bus during power-up or live-insertion.

The MAX13485E features reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free transmission up to 500kbps. The MAX13486E driver slew rate is not limited, allowing transmit speeds up to 16Mbps.

The MAX13485E/MAX13486E feature a 1/4-unit load receiver input impedance, allowing up to 128 transceivers on the bus. These devices are intended for half-duplex communications. All driver outputs are protected to ±15kV ESD using the Human Body Model. The MAX13485E/MAX13486E are available in 8-pin SO and space-saving 8-pin µDFN packages. The devices operate over the extended -40°C to +85°C temperature range.

An evaluation kit is available:  MAX13485EEVKIT  

Key Features   Applications/Uses
  • +5V Operation
  • True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility
  • Hot-Swappable for Telecom Applications
  • Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission (MAX13485E)
  • High-Speed Version (MAX13486E) Allows for Transmission Speeds Up to 16Mbps
  • Extended ESD Protection for RS-485/RS-422 I/O Pins ±15kV Using Human Body Model
  • 1/4 Unit Load, Allowing Up to 128 Transceivers on the Bus
  • Available in Space-Saving 8-Pin μDFN or Industry Standard 8-Pin SO Packages

 
  		• Automated HVAC Systems
  		• Industrial Controls
  		• Industrial Motor Drives
  		• Utility Meters

    Key Specifications:  RS-422/485 Line Driver/Receivers
    Part Number Tx/Rx Duplex VSUPPLY
    (V)    		 ICC
    (mA)    		 Data Rate
    (kbps)    		 ESD Protect.
    (±kV)    		 Tx EN Rx EN ICC (Shutdn.)
    (µA)    		 Rx/Tx on Bus Package/Pins Price
    typ min typ See Notes
    MAX13485E  1Tx + 1Rx Half 5 4.5 500 15 Yes Yes 10 128
    µDFN/8
    SOIC(N)/8
    		 $1.25 @1k
    MAX13486E  16000
    µDFN/8
    SOIC(N)/8
    		 $1.25 @1k
    See All RS-422/485 Line Driver/Receivers (159)

    Diagram
    MAX13485E, MAX13486E: Pin Configurations
    Pin Configurations

    Evaluation Kits
  		• MAX13485EEVKIT

    Design Guides
  		• Interface (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• 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: 1-7 of 7

    MAX13485E Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX13485EELA+T    
    		Active µDFN;8 pin;4 mm²
    Outline Drawing: 21-0164 (PDF)
    Land Pattern: 90-0005 (PDF)
    Use pkgcode/variation: L822+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX13485EELA+  
    		Active µDFN;8 pin;4 mm²
    Outline Drawing: 21-0164 (PDF)
    Land Pattern: 90-0005 (PDF)
    Use pkgcode/variation: L822+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX13485EESA+  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX13485EESA+T    
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX13486E Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX13486EELA+T    
    		Active µDFN;8 pin;4 mm²
    Outline Drawing: 21-0164 (PDF)
    Land Pattern: 90-0005 (PDF)
    Use pkgcode/variation: L822+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX13486EESA+  
    		Active SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX13486EESA+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

    More Information
  		• New Product Press Release 2007-03-05 
  		• Product Ad: Download

    Related Products

    More Like This: View Product Families for Similar Products

    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 
     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 

    Document Ref.: 19-0742; Rev 0; 2007-02-09
    This page last modified: 2009-09-01


            •         •         •     Privacy Policy     •     Legal Notices

        Copyright © 2009 by Maxim Integrated Products