MAX3174CAI-T Maxim Integrated, MAX3174CAI-T Datasheet

MAX3174CAI-T

Manufacturer Part Number

MAX3174CAI-T

Description

RS-232 Interface IC

Manufacturer

Maxim Integrated

Series

MAX3172, MAX3174r

Datasheet

1.MAX3174CAI-T.pdf (19 pages)

Specifications of MAX3174CAI-T

Data Rate

240 Kbps

Operating Supply Voltage

3.3 V

Supply Current

0.2 mA

Operating Temperature Range

0 C to + 70 C

Mounting Style

SMD/SMT

Number Of Drivers

Number Of Receivers

Current page: 1 of 19
Download datasheet (828Kb)

The MAX3172/MAX3174 contain five software-selec-

table 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 dif-

ferential 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 net-

works 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 selec-

table 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.

________________________Applications

19-1801; Rev 2; 6/04

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Data Networking

CSU and DSU

Data Routers

MAX3171

MAX3173

+3.3V Multiprotocol Software-Selectable

________________________________________________________________ Maxim Integrated Products

CTS

13 5

DSR

10 8

PCI Cards

Telecommunications

General Description

Cable Terminators and Transceivers

DCD

22 6

DTR

23 20 19 4

RTS

MAX3172

MAX3174

DB-25 CONNECTOR

Pin Configuration appears at end of data sheet.

MAX3172CAI

MAX3174CAI

MAX3172EAI

Industry’s First +3.3V Multiprotocol Termination

Networks and Transceivers

Certified TBR-1 and TBR-2 Compliant

(NET1 and NET2)

Support 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

Replace Discrete Resistor Termination Networks

and Expensive Relays

10µs Receiver Input Deglitching (MAX3172 only)

Available in Small 28-Pin SSOP Package

Transmitter Output Fault Protected to ±15V,

Tolerates Cable Miswiring

PART

RXD

RXC

9 17

Typical Operating Circuit

-40 C to +85 C

TEMP RANGE

Ordering Information

0 C to +70 C

TXC SCTE

12 15 11 24 14 2

TXD

MAX3170

Features

PIN-PACKAGE

28 SSOP

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