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MAX13487E

更新时间： 2024-11-15 14:57:15
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
17页 255K
描述
半双工RS-485/RS-422收发器，带有自动选向控制

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MAX13487E 数据手册

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EVALUATION KIT AVAILABLE  
Half-Duplex RS-485-/RS-422-  
Compatible Transceiver with  
AutoDirection Control  
MAX13487E/MAX13488E  
General Description  
Benefits and Features  
The MAX13487E/MAX13488E +5V, half-duplex, 15ꢀV  
ESD-protected RS-485/RS-422-compatible transceivers  
feature one driver and one receiver. The MAX13487E/  
MAX13488E include a hot-swap capability to eliminate  
false transitions on the bus during power-up or live  
insertion.  
• AutoDirection Saves Space and BOM Cost  
• AutoDirection Enables Driver Automatically on  
Transmission, Eliminating an Opto or Other  
Discrete Means of Isolation  
• 8-Pin SO Package  
• Robust Protection Features for Telecom, Industrial,  
The MAX13487E/MAX13488E feature Maxim’s propri-  
etary AutoDirection control. This architecture maꢀes the  
devices ideal for applications, such as isolated RS-485  
ports, where the driver input is used in conjunction with  
the driver-enable signal to drive the differential bus.  
and Isolated Applications  
• Hot-Swap Capability to Eliminate False Transitions  
on the Bus During Power-Up or Live Insertion  
• Extended ESD Protection for RS-485 I/O Pins  
(±±5kꢀ Human Body Modelꢁ  
The MAX13487E features reduced slew-rate drivers  
that minimize EMI and reduce reflections caused by  
improperly terminated cables, allowing error-free trans-  
mission up to 500ꢀbps. The MAX13488E driver slew  
rate is not limited, allowing transmit speeds up to  
16Mbps.  
• Options Optimize Designs for Speed or Errorless  
Data Transmission  
• Enhanced Slew-Rate Limiting Facilitates Error-  
Free Data Transmission (MAX±3487Eꢁ  
• High-Speed ꢀersion (MAX±3488Eꢁ Allows for  
Transmission Speeds Up to ±6Mbps  
The MAX13487E/MAX13488E feature a 1/4-unit load  
receiver input impedance, allowing up to 128 trans-  
ceivers on the bus. These devices are intended for half-  
duplex communications. All driver outputs are  
protected to 15ꢀV ESD using the ꢁuman ꢂody Model.  
The MAX13487E/MAX13488E are available in an 8-pin  
SO pacꢀage. The devices operate over the extended  
-40°C to +85°C temperature range.  
• ±/4-Unit Load, Allowing Up to ±28 Transceivers on  
the Bus  
Functional Diagram  
MAX13487E  
MAX13488E  
8
V
CC  
Applications  
+
-
1
2
RO  
RE  
R
Isolated RS-485 Interfaces  
RE  
Utility Meters  
Industrial Controls  
Industrial Motor Drives  
Automated ꢁVAC Systems  
3
7
6
B
SHDN  
-
V
DT  
COM  
A
+
Ordering Information/  
Selector Guide  
SLEW-RATE  
STATE  
MACHINE  
RI  
DI  
DE  
PART  
PIN-PACKAGE  
4
LIMITED  
D
DI  
MAX13487EESA+  
MAX13488EESA+  
8 SO  
8 SO  
Yes  
No  
5
GND  
+Denotes a lead(Pb)-free/RoꢁS-compliant pacꢀage.  
Note: All devices operate over the -40°C to +85°C temperature  
range.  
Pin Configuration/Typical Application Circuit appear at end  
of data sheet.  
19-0740; Rev 1; 2/15  
1234567...17

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