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参数资料
| 型号： | MAX3172EAI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC TERM/TXRX MULTIPROT 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS232 |
| 电源电压： | 3 V ~ 3.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
General Description
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 100 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 10s 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
Data Networking
PCI Cards
CSU and DSU
Telecommunications
Data Routers
Features
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
10s Receiver Input Deglitching (MAX3172 only)
Available in Small 28-Pin SSOP Package
Transmitter Output Fault Protected to ±15V,
Tolerates Cable Miswiring
MAX3172/MAX3174
+3.3V Multiprotocol Software-Selectable
Cable Terminators and Transceivers
________________________________________________________________ Maxim Integrated Products
1
19-1801; Rev 2; 6/04
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX3172CAI
0
°C to +70°C
28 SSOP
MAX3172EAI
-40
°C to +85°C
28 SSOP
MAX3174CAI
0
°C to +70°C
28 SSOP
D1
D2
D3
R1
R2
R3
MAX3170
RXD
RXC
TXD
TXC
SCTE
D1
R4
D4
D2
D3
R1
R2
R3
MAX3171
MAX3173
MAX3172
MAX3174
CTS
DSR
RTS
DTR
LL
DCD
CTS
B
CTS
A
DSR
B
DSR
A
DCD
B
DCD
A
DTR
B
DTR
A
RTS
B
RTS
A
SHIELD
SG
LL
A
RXD
A
RXD
B
RXC
B
RXC
A
TXC
B
TXC
A
SCTE
B
SCTE
A
TXD
B
TXD
A
DB-25 CONNECTOR
13 5
10 8
22 6
23 20 19 4
1
7
16
18
3
9 17
12 15 11 24 14 2
Typical Operating Circuit
Pin Configuration appears at end of data sheet.
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.
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