型号: SP3485
厂商: Sipex Corporation Sipex Corporation
描述: +3.3V low power half-duplex RS-485 transceivers with 10mbps data rate
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®
SP3481/SP3485  
+3.3V Low Power Half-Duplex RS-485  
Transceivers with 10Mbps Data Rate  
RS-485 and RS-422 Transceivers  
Operates from a single +3.3V supply  
Interoperable with +5.0V logic  
Driver/Receiver Enable  
Low Power Shutdown Mode (SP3481)  
-7V to +12V Common-Mode Input  
Voltage Range  
Allows up to 32 transceivers on  
the serial bus  
Compatibility with the industry  
standard 75176 pinout  
Driver Output Short-Circuit Protection  
DESCRIPTION  
The SP3481 and the SP3485 are a family of +3.3V low power half-duplex transceivers that  
meet the specifications of the RS-485 and RS-422 serial protocols. These devices are pin-to-  
pin compatible with the Sipex SP481, SP483, and SP485 devices as well as popular industry  
standards. The SP3481 and the SP3485 feature Sipex's BiCMOS process, allowing low power  
operation without sacrificing performance. The SP3481 and SP3485 meet the electrical  
specifications of RS-485 and RS-422 serial protocols up to 10Mbps under load. The SP3481  
is equipped with a low power Shutdown mode.  
RO  
1
2
3
4
R
8 Vcc  
7 B  
RE  
DE  
DI  
6 A  
5 GND  
D
SP3481 and SP3485  
10/15/02  
SP3481/3485 Low Power Half-Duplex RS485 Transceivers  
© Copyright 2002 Sipex Corporation