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MAX3172

MAX3172

+3.3V Multiprotocol Software-Selectable Cable Terminators and Transceivers

Save Board Space by Replacing Discrete Resistor Networks and Expensive Relays

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Overview

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.
MAX3172, MAX3174: Typical Operating Circuit MAX3172, MAX3174: Typical Operating Circuit Enlarge+

Key Features

  • 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

Applications/Uses

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

Parametric Specs

See parametric specs for Multiprotocol Transceivers (17)


Part NumberFunctionsRS-232 Data Rate
(Mbps)		RS-485 Data Rate
(Mbps)		Single Ended Tx/RxDiff. Tx/RxShutdnSupported ProtocolsDCE/ DTE Interchg.Rx Glitch RejectionTx Fault Protect.On Chip Charge PumpICC
(mA)		ICC (Shutdown)
(µA)		Package/PinsBudgetary
Price
maxmaxmaxSee Notes
MAX3172 Multiprotocol Cable Terminator and Transceiver0.24101/11/1Yes
RS-232
RS-423
RS-449
RS-485
RS-530
RS-530A
V.11
V.28
V.35
V.36
X.21
YesYesYesNo0.75200
SSOP/28
$7.31 @1k
MAX3174 
RS-232
RS-449
RS-485
RS-530
RS-530A
V.10
V.11
V.28
V.35
X.21
No
SSOP/28
$7.58 @1k

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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

Quality And Environmental

Product Reliability Reports: MAX3172.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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