Maxim > Products > Interface, Interconnect, Signal Integrity > MAX3440E, MAX3441E, MAX3442E, ...

MAX3440E, MAX3441E, MAX3442E, MAX3443E, MAX3444E

±15kV ESD-Protected, ±60V Fault-Protected, 10Mbps, Fail-Safe RS-485/J1708 Transceivers

±15kV ESD-Protected, ±60V, Fault-Protected, 10Mbps Fail-Safe RS-485/J1708 Transceivers
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Status Explanations for product status codes

Active: In Production.

Description

The MAX3440E-MAX3444E fault-protected RS-485 and J1708 transceivers feature ±60V protection from signal faults on communication bus lines. Each device contains one differential line driver with three-state output and one differential line receiver with three-state input. The 1/4-unit-load receiver input impedance allows up to 128 transceivers on a single bus. The devices operate from a 5V supply at data rates of up to 10Mbps. True fail-safe inputs guarantee a logic-high receiver output when the receiver inputs are open, shorted, or connected to an idle data line.

Hot-swap circuitry eliminates false transitions on the data bus during circuit initialization or connection to a live backplane. Short-circuit current-limiting and thermal shutdown circuitry protect the driver against excessive power dissipation, and on-chip ±15kV ESD protection eliminates costly external protection devices.

The MAX3440E-MAX3444E are available in 8-pin SO and PDIP packages and are specified over industrial and automotive temperature ranges.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 2 (PDF, 316kB)
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Key Features

  • ±15kV ESD Protection
  • ±60V Fault Protection
  • Guaranteed 10Mbps Data Rate (MAX3441E/MAX3443E)
  • Hot Swappable for Telecom Applications
  • True Fail-Safe Receiver Inputs
  • Enhanced Slew-Rate-Limiting Facilitates Error-Free Data Transmission (MAX3440E/MAX3442E/MAX3444E)
  • Allow Up to 128 Transceivers on the Bus
  • -7V to +12V Common-Mode Input Range
  • Automotive Temperature Range (-40°C to +125°C)
  • Industry-Standard Pinout
 

Applications/Uses

  • Automotive Applications
  • HVAC Controls
  • Industrial Networks
  • RS-422/RS-485 Communications
  • Telecommunication Systems
  • Truck and Trailer Applications
   

Key Specifications:

RS-422/485 Line Driver/Receivers
Part Number Tx/Rx Duplex VSUPPLY
(V)		 Fault Protect.
(±V)		 ICC
(mA)		 Data Rate
(kbps)		 ESD Protect.
(±kV)		 Tx EN Rx EN ICC (Shutdn.)
(µA)		 Rx/Tx on Bus Package/Pins Budgetary Price
typ min typ See Notes
MAX3440E  1Tx + 1Rx Half 5 60 30 250 15 Yes Yes - 128
PDIP(N)/8
SOIC(N)/8
 $2.40 @1k
MAX3441E  10 10000 -
PDIP(N)/8
SOIC(N)/8
 $2.40 @1k
MAX3442E  30 250 10
PDIP(N)/8
SOIC(N)/8
 $2.40 @1k
MAX3443E  10 10000 10
PDIP(N)/8
SOIC(N)/8
 $2.40 @1k
MAX3444E  30 250 10
PDIP(N)/8
SOIC(N)/8
 $2.40 @1k
See All RS-422/485 Line Driver/Receivers (165)
Pricing 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.


Diagram

MAX3440E, MAX3441E: Pin Configuration
Pin Configuration

MAX3442E, MAX3443E, MAX3444E: Pin Configuration
Pin Configuration

Application Notes

Application Note 639   Maxim Leads the Way in ESD Protection
Application Note 651   ESD Protection for I/O Ports
Tutorial 736   RS-485 (EIA/TIA-485) Differential Data Transmission System Basics
Tutorial 4697   Overview of Industrial Motor Control Systems
Tutorial 4701   Introduction to Programmable Logic Controllers (PLCs) and the Operational Function of Main System Modules
Tutorial 4991   Oops...Practical ESD Protection vs. Foolhardy Placebos
Tutorial 4993   Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface

Product Guides

Interface (PDF)

Reliability Reports

Reliability Report: MAX3440E.pdf MAX3441E.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

MAX3440E IBIS Model
MAX3441E IBIS Model
MAX3442E IBIS Model
MAX3443E IBIS Model
MAX3444E IBIS Model

Ordering Information

Filters: Part Number: Package: Temperature: Tape and Reel Sample
Devices: 51-63 / 63 <-- Previous   1 2  Next -->
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX3443EESA+  
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3443EESA+T    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3443EESA-T    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8-5*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX3444EAPA    
Active PDIP(N);8 pin;81.9 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P8-4*
-40°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX3444EASA    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8-5*
-40°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX3444EASA+  
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
-40°C to +125°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3444EASA+T    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
-40°C to +125°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3444EASA-T    
Active N.SO;8 pin

Land Pattern: Not Available

-40°C to +125°C See data sheet
MAX3444EEPA    
Active PDIP(N);8 pin;81.9 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P8-4*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX3444EESA    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8-5*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX3444EESA+  
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3444EESA+T    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX3444EESA-T    
Active N.SO;8 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
Devices: 51-63 / 63 <-- Previous   1 2  Next -->

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; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product 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.

Similar Products by Function

See All RS-422/485 Line Driver/Receivers (165 Products)

Similar Products by Application

ESD Protection > RS-485/RS-422 Transceivers
HVAC > RS-485

More Information

New Product Press Release [ 2002-11-04 ] [ 2002-05-27 ]


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Document Ref.: 19-2666 Rev 2; 2010-12-15
This page last modified: 2010-12-15

 


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