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Maxim > Products > [Interface and Interconnect] 
MAX3172, MAX3174
+3.3V Multiprotocol Software-Selectable Cable Terminators and Transceivers

Save Board Space by Replacing Discrete Resistor Networks and Expensive Relays


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 848kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX3172/MAX3174 contain five software-selectable multiprotocol cable termination networks. Each network is capable of terminating V.11 (RS-422, RS-530, RS-530A, RS-449, V.36, and X.21) with a 100Ω differential load, V.35 with a T-network load, or V.28 (RS-232) and V.10 (RS-423) with an open circuit load for use with transceivers having on-chip termination. The devices replace discrete resistor termination networks and expensive relays required for multiprotocol termination. The MAX3172/MAX3174, along with the MAX3170 and MAX3171/MAX3173, form a complete +3.3V software-selectable DTE or DCE interface port supporting V.11/RS-422, RS-530, RS-530A, V.36/RS-449, V.35, V.28/RS-232, V.10/RS-423, and X.21 serial interfaces.

In addition to the five multiprotocol cable termination networks, the MAX3172/MAX3174 contain a 1Tx/1Rx multiprotocol transceiver designed to use V+ and V- generated by the MAX3171/MAX3173 charge pump. The MAX3172/MAX3174 transceiver is software selectable between V.10 and V.28 modes of operation. The MAX3172 features 10µs deglitching on the V.10/V.28 receiver input to facilitate unterminated operation while the MAX3174 is used in applications that do not require deglitching on the serial handshake signals. These devices are available in a 28-pin SSOP package.

Key Features   Applications/Uses
  • Industry's First +3.3V Multiprotocol Termination Networks and Transceiver
  • Certified TBR-1 and TBR-2 Compliant (NET1 and NET2)
  • Supports V.28 (RS-232), V.11 (RS-422, RS-530, RS-530A, RS-449, V.36, and X.21) V.10 and V.35
  • 3V/5V Logic-Compatible I/O
  • Software-Selectable DTE/DCE
  • Replaces Discrete Resistor Termination Networks and Expensive Relays
  • 10µs Receiver Input Deglitching (MAX3172 only)
  • Available in Small 28-Pin SSOP Packages
  • Transmitter Output Fault Protected to ±15V, Tolerates Cable Miswiring

 
  		• CSUs/DSUs
  		• Data Networking
  		• Data Routers
  		• PCI Cards
  		• Telecommunications

    Key Specifications:  Multiprotocol Transceivers
    Part Number Functions RS-232 Data Rate
    (Mbps)    		 RS-485 Data Rate
    (Mbps)    		 Single Ended Tx/Rx Diff. Tx/Rx Shutdn Supported Protocols DCE/ DTE Interchg. Rx Glitch Rejection Tx Fault Protect. On Chip Charge Pump ICC
    (mA)    		 ISHUTDN
    (µA)    		 Price
    max max max See Notes
    MAX3172  Multiprotocol Cable Terminator and Transceiver 0.24 10 1/1 1/1 Yes
    RS-232
    RS-423
    RS-449
    RS-485
    RS-530
    RS-530A
    V.11
    V.28
    V.35
    V.36
    X.21
    		 Yes Yes Yes No 0.75 200 $6.05 @1k
    MAX3174 
    RS-232
    RS-449
    RS-485
    RS-530
    RS-530A
    V.10
    V.11
    V.28
    V.35
    X.21
    		 No $6.05 @1k
    See All Multiprotocol Transceivers (18)

    Diagram
    MAX3172, MAX3174: Typical Operating Circuit
    Typical Operating Circuit

    Design Guides
  		• Interface (PDF)

    Reliability Reports
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    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: 1-10 of 10

    MAX3172 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3172EAI+  
    		Active SSOP;28 pin;82 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0095 (PDF)
    Use pkgcode/variation: A28+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3172EAI+T    
    		Active SSOP;28 pin;82 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0095 (PDF)
    Use pkgcode/variation: A28+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3172CAI    
    		Active SSOP;28 pin;82 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0095 (PDF)
    Use pkgcode/variation: A28-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3172CAI-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX3172CAI+  
    		Active SSOP;28 pin;82 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0095 (PDF)
    Use pkgcode/variation: A28+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3172CAI+T    
    		Active SSOP;28 pin;82 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0095 (PDF)
    Use pkgcode/variation: A28+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3174 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3174CAI    
    		Active SSOP;28 pin;82 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0095 (PDF)
    Use pkgcode/variation: A28-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3174CAI-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX3174CAI+  
    		Active SSOP;28 pin;82 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0095 (PDF)
    Use pkgcode/variation: A28+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3174CAI+T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet

    Related Products
    MAX3170 +3.3V, Multiprotocol, 3 Tx/3 Rx, Software-Selectable Clock/Data Transceiver
    MAX3171, MAX3173 +3.3V Multiprotocol 3Tx/3Rx Software-Selectable Control Transceivers

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    Document Ref.: 19-1801; Rev 2; 2004-08-03
    This page last modified: 2009-10-02


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