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MAX13487E, MAX13488E
Half-Duplex RS-485/RS-422-Compatible Transceiver with AutoDirection Control

Eliminate an Isolated Control Channel with AutoDirection


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 308kB)
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Description
The MAX13487E/MAX13488E +5V, half-duplex, ±15kV ESD-protected RS-485/RS-422-compatible transceivers feature one driver and one receiver. The MAX13487E/MAX13488E include a hot-swap capability to eliminate false transitions on the bus during power-up or live insertion.

The MAX13487E/MAX13488E feature Maxim's proprietary AutoDirection control. This architecture makes the devices ideal for applications, such as isolated RS-485 ports, where the driver input is used in conjunction with the driver-enable signal to drive the differential bus. The MAX13487E features reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free transmission up to 500kbps. The MAX13488E driver slew rate is not limited, allowing transmit speeds up to 16Mbps.

The MAX13487E/MAX13488E 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 MAX13487E/MAX13488E are available in an 8-pin SO package. The devices operate over the extended -40°C to +85°C temperature range.

An evaluation kit is available:  MAX13487EEVKIT  

Key Features   Applications/Uses
  • +5V Operation
  • AutoDirection Enables Driver Automatically on Transmission
  • Hot-Swappable for Telecom Applications
  • Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission (MAX13487E)
  • High-Speed Version (MAX13488E) Allows for Transmission Speeds Up to 16Mbps
  • Extended ESD Protection for RS-485 I/O Pins ±15kV Human Body Model
  • 1/4-Unit Load, Allowing Up to 128 Transceivers on the Bus
  • 8-Pin SO Package

 
  		• Automated HVAC Systems
  		• Industrial Controls
  		• Industrial Motor Drives
  		• Isolated RS-485 Interfaces
  		• 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
    MAX13487E  1Tx + 1Rx Half 5 4.5 500 15 No Yes 10 128
    SOIC(N)/8
    		 $1.25 @1k
    MAX13488E  16000
    SOIC(N)/8
    		 $1.25 @1k
    See All RS-422/485 Line Driver/Receivers (159)

    Diagram
    MAX13487E, MAX13488E: Functional Diagram
    Functional Diagram

    Evaluation Kits
  		• MAX13487EEVKIT

    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: 1-4 of 4

    MAX13487E Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX13487EESA+  
    		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
    MAX13487EESA+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
    MAX13488E Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX13488EESA+  
    		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
    MAX13488EESA+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

    More Information
  		• New Product Press Release 2007-03-14 

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    •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

    		 Data Sheet 
     Application Notes 
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     Engineering Journals 
     Reliability Reports 
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    Document Ref.: 19-0740; Rev 0; 2007-02-09
    This page last modified: 2009-10-22


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