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MAX3172

Maxim
Part Number MAX3172
Manufacturer Maxim
Description +3.3V Multiprotocol Software-Selectable Cable Terminators/Transceivers
Published Jun 13, 2005
Detailed Description 19-1801; Rev 1; 1/01 +3.3V Multiprotocol Software-Selectable Cable Terminators and Transceivers General Description The...
Datasheet PDF File MAX3172 PDF File

MAX3172
MAX3172

Overview
19-1801; Rev 1; 1/01 +3.
3V Multiprotocol Software-Selectable Cable Terminators and Transceivers General Description The MAX3172/MAX3174 contain five software-selectable multiprotocol cable termination networks.
Each network is capable of terminating V.
11 (RS-422, RS530, 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/RS449, 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 Vgenerated 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.
Features o Industry’s First +3.
3V Multiprotocol Termination Networks and Transceivers o Certified TBR-1 and TBR-2 Compliant (NET1 and NET2) o Support V.
28 (RS-232), V.
11 (RS-422, RS-530, RS530A, RS-449, V.
36, and X.
21), V.
10 and V.
35 o 3V/5V Logic-Compatible I/O o Software-Selectable DTE/DCE o Replace Discrete Resistor Termination Networks and Expensive Relays o 10µs Receiver Input Deglitching (MAX3172 only) o Available in Small 28-Pin SSOP Package o Transmitter Output Fault Protected to ±15V, Tolerates Cable Miswiring MAX3172/MAX3174 Ordering Information PART MAX3172CAI MAX3174C...


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