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SP485R

Description
High-Fanout RS-485 Transceiver
CategoryTopical application    Wireless rf/communication   
File Size519KB,9 Pages
ManufacturerExar [Exar Corporation]
Download Datasheet Compare View All

SP485R Overview

High-Fanout RS-485 Transceiver

SP485R
1/10th Unit Load RS-485 Transceiver
FEATURES
• Allows Over 400 Transceivers On A
Transmission Line (/0th Unit Load)
• High Impedance on Receiver Inputs
(R
IN
= 150kΩ typical)
• Half-Duplex Configuration Consistent
With Industry Standard Pinout
• -7V to +2V Common Mode Input
Voltage Range
• Low Power Consumption (250mW)
• Separate Driver and Receiver Enable
DESCRIPTION
The
SP485R
is a pin-to-pin equivalent to our existing SP485 product and offers a 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.
The device is packaged in a 8-pin plastic DIP or 8-pin narrow SOIC.
Figure 1. Typical Application Circuit
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com
SP485R_00_072309


SP485R Related Products

SP485R SP485RCN-L SP485RCP-L SP485REP-L SP485REN-L SP485RCN-L/TR SP485REN-L/TR
Description High-Fanout RS-485 Transceiver LINE TRANSCEIVER, PDSO8 LINE TRANSCEIVER, PDIP8 LINE TRANSCEIVER, PDIP8 LINE TRANSCEIVER, PDSO8 LINE TRANSCEIVER, PDSO8 LINE TRANSCEIVER, PDSO8
Number of functions - 1 1 1 1 1 1
Number of terminals - 8 8 8 8 8 8
Maximum operating temperature - 70 Cel 70 Cel 85 Cel 85 Cel 70 Cel 85 Cel
Minimum operating temperature - 0.0 Cel 0.0 Cel -40 Cel -40 Cel 0.0 Cel -40 Cel
Maximum supply voltage 1 - 5.25 V - - 5.25 V 5.25 V 5.25 V
Minimum supply voltage 1 - 4.75 V - - 4.75 V 4.75 V 4.75 V
Rated supply voltage 1 - 5 V - - 5 V 5 V 5 V
Processing package description - Lead FREE, MS-012AA, SOIC-8 LEAD FREE, PLASTIC, MS-001BA, DIP-8 LEAD FREE, PLASTIC, MS-001BA, DIP-8 Lead FREE, MS-012AA, SOIC-8 Lead FREE, MS-012AA, SOIC-8 Lead FREE, MS-012AA, SOIC-8
Lead-free - Yes - - Yes Yes Yes
EU RoHS regulations - Yes Yes Yes Yes Yes Yes
state - ACTIVE Active Active TRANSFERRED ACTIVE ACTIVE
packaging shape - Rectangle RECTANGULAR RECTANGULAR Rectangle Rectangle Rectangle
Package Size - SMALL OUTLINE IN-LINE IN-LINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
surface mount - Yes NO NO Yes Yes Yes
Terminal form - GULL WING THROUGH-HOLE THROUGH-HOLE GULL WING GULL WING GULL WING
Terminal spacing - 1.27 mm 2.54 mm 2.54 mm 1.27 mm 1.27 mm 1.27 mm
terminal coating - MATTE Tin MATTE TIN MATTE TIN tin MATTE Tin MATTE Tin
Terminal location - pair DUAL DUAL pair pair pair
Packaging Materials - Plastic/Epoxy PLASTIC/EPOXY PLASTIC/EPOXY Plastic/Epoxy Plastic/Epoxy Plastic/Epoxy
Temperature level - COMMERCIAL COMMERCIAL INDUSTRIAL INDUSTRIAL COMMERCIAL INDUSTRIAL
Max TPHL driver - 100 ns - - 100 ns 100 ns 100 ns
Interface Type - line transceiver LINE TRANSCEIVER LINE TRANSCEIVER line transceiver line transceiver line transceiver
Interface standards - EIA-485 EIA-485 EIA-485 EIA-485 EIA-485 EIA-485
Max TPHL receiver - 1200 ns - - 1200 ns 1200 ns 1200 ns
Differential output - Yes YES YES Yes Yes Yes
Number of drive digits - 1 1 1 1 1 1
Input properties - differential DIFFERENTIAL DIFFERENTIAL differential differential differential
Number of receiver bits - 1 1 1 1 1 1
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Index Files: 1567  2702  1517  2789  2210  32  55  31  57  45 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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