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ST485C PDF预览

ST485C

更新时间: 2024-11-21 03:30:55
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS /
页数 文件大小 规格书
19页 731K
描述
Low power RS-485/RS-422 transceiver

ST485C 数据手册

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ST485B  
ST485C  
Low power RS-485/RS-422 transceiver  
Features  
Low quiescent current: 300 µA  
Designed for RS-485 interface application  
-7 V to 12 V common mode input voltage range  
Driver maintains high impedance in 3-state or  
with the power OFF  
70 mV typical input hysteresis  
30 ns propagation delay, 5 ns skew  
Operate from a single 5 V supply  
DIP-8  
SO-8  
Current limiting and thermal shutdown for  
The ST485 is available in three temperature  
range: commercial (0 °C to 70 °C), industrial (-40  
°C to 85 °C) and automotive (-55 °C to 125 °C).  
driver overload protection  
Allows up to 64 transceivers on the bus  
Description  
The ST485 is al low power transceiver for RS-485  
and RS-422 communication. Each part contains  
one driver and one receiver.  
This transceiver draw 300 µA (typ.) of supply  
current when unloaded or fully loaded with  
disabled drivers.  
It operates from a single 5 V supply.  
Driver is short-circuit current limited and is  
protected against excessive power dissipation by  
thermal shutdown circuitry that placed the driver  
outputs into a high-impedance state.  
The ST485 is designed for bi-directional data  
communications on multipoint bus transmission  
line (half-duplex applications).  
Table 1.  
Order code  
ST485CN  
Device summary  
Temperature range  
Package  
Packaging  
0 to 70 °C  
-40 to 85 °C  
0 to 70 °C  
DIP-8  
50 parts per tube / 40 tube per box  
50 parts per tube / 40 tube per box  
2500 parts per reel  
ST485BN  
ST485CDR  
ST485BDR  
DIP-8  
SO-8 (tape and reel)  
SO-8 (tape and reel)  
-40 to 85 °C  
2500 parts per reel  
February 2008  
Rev 15  
1/19  
www.st.com  
19  

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