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MAX3442E

更新时间： 2024-01-30 23:58:44
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
20页 367K
描述
【15kV ESD-Protected, 【60V Fault-Protected, 10Mbps, Fail-Safe RS-485/J1708 Transceivers

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MAX3442E 数据手册

 浏览型号MAX3442E的Datasheet PDF文件第2页浏览型号MAX3442E的Datasheet PDF文件第3页浏览型号MAX3442E的Datasheet PDF文件第4页浏览型号MAX3442E的Datasheet PDF文件第5页浏览型号MAX3442E的Datasheet PDF文件第6页浏览型号MAX3442E的Datasheet PDF文件第7页 
19-2666; Rev 0; 10/02  
±±15k ESDꢀ-rotected, ±ꢁ0k Faultꢀ-rotected,  
±0Mbps, FailꢀSafe RSꢀ481/J±708 Transceivers  
General Description  
Features  
The MAX3440E–MAX3444E fault-protected RS-485 and  
J1708 transceivers feature 60V protection from signal  
faults on communication bus lines. Each device contains  
one differential line driver with three-state output and one  
differential line receiver with three-state input. The 1/4-unit-  
load receiver input impedance allows up to 128 trans-  
ceivers on a single bus. The devices operate from a 5V  
supply at data rates of up to 10Mbps. True fail-safe inputs  
guarantee a logic-high receiver output when the receiver  
inputs are open, shorted, or connected to an idle data line.  
ꢀ
ꢀ
15kV ESD Protection  
60V Fault Protection  
ꢀ Guaranteed 10Mbps Data Rate  
(MAX3441E/MAX3443E)  
ꢀ Hot Swappable for Telecom Applications  
ꢀ True Fail-Safe Receiver Inputs  
ꢀ Enhanced Slew-Rate-Limiting Facilitates  
Error-Free Data Transmission  
(MAX3440E/MAX3442E/MAX3444E)  
Hot-swap circuitry eliminates false transitions on the  
data bus during circuit initialization or connection to a  
live backplane. Short-circuit current-limiting and ther-  
mal shutdown circuitry protect the driver against exces-  
sive power dissipation, and on-chip 15kV ESD  
protection eliminates costly external protection devices.  
ꢀ Allow Up to 128 Transceivers on the Bus  
ꢀ -7V to +12V Common-Mode Input Range  
ꢀ Automotive Temperature Range (-40°C to +125°C)  
ꢀ Industry-Standard Pinout  
The MAX3440E–MAX3444E are available in 8-pin SO  
and PDIP packages and are specified over industrial  
and automotive temperature ranges.  
Ordering Information  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +125°C  
-40°C to +125°C  
PIN-PACKAGE  
8 SO  
Applications  
RS-422/RS-485 Communications  
Truck and Trailer Applications  
Industrial Networks  
Telecommunications Systems  
Automotive Applications  
MAX3440EESA  
MAX3440EEPA  
MAX3440EASA  
MAX3440EAPA  
8 PDIP  
8 SO  
8 PDIP  
Ordering Information continued at end of data sheet.  
HVAC Controls  
Selector Guide  
DATA RATE  
(Mbps)  
LOW-POWER  
SHUTDOWN  
RECEIVER/DRIVER TRANSCEIVERS  
PART  
TYPE  
HOT SWAP  
ENABLE  
ON BUS  
MAX3440E  
MAX3441E  
MAX3442E  
MAX3443E  
MAX3444E  
RS-485  
RS-485  
RS-485  
RS-485  
J1708  
0.25  
2.5 to 10  
0.25  
No  
No  
Yes  
Yes  
Yes  
Yes  
Yes  
128  
128  
128  
128  
128  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
2.5 to 10  
0.25  
Yes  
Yes (only RE)  
-in Configurations and Typical Operating Circuits  
TOP VIEW  
DE/RE  
MAX3440E  
MAX3441E  
FAULT  
RO  
FAULT  
RO  
V
1
2
3
4
1
2
3
4
8
7
8
7
6
5
V
CC  
D
CC  
Rt  
DI  
B
B
A
R
R
B
A
Rt  
6
DE/RE  
DI  
DE/RE  
DI  
A
RO  
R
GND  
D
D
5
GND  
FAULT  
DIP/SO  
DIP/SO  
Pin Configurations and Typical Operating Circuits continued at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...20

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