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Part Number: SP481R

 

 

 

 

Description: The SP481R and SP485R are pin-to-pin equivalent with our existing SP485 product and contain enhancemen...


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SP481R General Description


The SP481R and SP485R are pin-to-pin equivalent with our existing SP485 product and contain enhancements such as higher ESD tolerance and high receiver input impedance. The higher receiver input impedance allows for connecting over 400 transceivers on a single transmission line without degrading the RS-485 driver signal. Each device is packaged in an 8-pin plastic DIP or 8-pin narrow SOIC package. The SP481Roffers a shutdown feature via the enable pins which will reduce the supply current (ICC) below 0.5µA typical.

SP481R Maximum Ratings

VCC +7V
Storage Temperature -65 to +150
Power Dissipation
8-pin Plastic DIP
8-pin Plastic N-SOIC
1000mW
1000mW
Package Derating:
8-pin Plastic DIP øJA
8-pin Plastic N-SOIC øJA
62 /W
62 /W

SP481R Features

` Allows Over 400 Transceivers On A Transmission Line (1/10th Unit Load)
` High Impedance on Receiver Inputs (RIN = 150k typical)
` Half-Duplex Configuration Consistent With Industry Standard Pinout
` 7V to +12V Common Mode Input Voltage Range
` Includes Shutdown Mode (ICC < 10µA) (For SP481R Only)
` Low Power Consumption (250mW)
` Separate Driver and Receiver Enable

SP481R Connection Diagram

SP481R Connection Diagram

SP481R datasheet

SP481R
PDF/DataSheet Download

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Related Part Number

SP481R Relative Products

  • SP481E

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  • SP481

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    The SP481, SP483, and the SP485 are a family of half-duplex transceivers that meet the requirements of RS-485 and RS-422. Their BiCMOS design allows low power operation without sacrificing performance. The SP481 and SP485 meet the requirements of RS-485 and ...

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