SP485RCP Exar Corporation, SP485RCP Datasheet

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SP485RCP

Manufacturer Part Number
SP485RCP
Description
Manufacturer
Exar Corporation
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
SP485RCP
Manufacturer:
SIPEX
Quantity:
20 000
Part Number:
SP485RCP
Manufacturer:
SIPEX
Quantity:
10 794
FEATURES
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 SP481R offers a shutdown feature via the enable pins which
will reduce the supply current (I
Date: 6/21/04
Allows Over 400 Transceivers On A
Transmission Line (1/10th Unit Load)
High Impedance on Receiver Inputs
(R
Half-Duplex Configuration Consistent
With Industry Standard Pinout
–7V to +12V Common Mode Input
Voltage Range
Includes Shutdown Mode (I
(For SP481R Only)
Low Power Consumption (250mW)
Separate Driver and Receiver Enable
IN
= 150kΩ typical)
®
1/10th Unit Load RS-485 Transceiver
RO 1
RE 2
DE 3
CC
DI 4
CC
) below 0.5µA typical.
< 10µA)
SP485R RS-485 Serial Transceiver
Top View
D
R
1
SP485
Now Available in Lead Free Packaging
8
7
6
5
TYPICAL APPLICATION CIRCUIT
V
B
A
GND
SP481R/SP485R
CC
© Copyright 2004 Sipex Corporation
DESCRIPTION

Related parts for SP485RCP

SP485RCP Summary of contents

Page 1

Unit Load RS-485 Transceiver FEATURES Allows Over 400 Transceivers On A Transmission Line (1/10th Unit Load) High Impedance on Receiver Inputs (R = 150kΩ typical) IN Half-Duplex Configuration Consistent With Industry Standard Pinout –7V to +12V Common Mode ...

Page 2

ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions ...

Page 3

Typically 25°C @ Vcc = +5V unless otherwise noted. MIN. AC Characteristics Maximum Data Rate Propagation Delay t PHL t PLH Differential Receiver Skew SHUTDOWN TIMING (SP481R) Time to Shutdown RS-485 Driver Enable Time Enable to Low Enable to High ...

Page 4

TEST CIRCUITS Figure 1. Driver DC Test Load Circuit Figure 3. Driver/Receiver Timing Test Circuit SWITCHING WAVEFORMS +3V + ...

Page 5

Figure 6. Driver Enable and Disable Times + V 0D2 A – B – V 0D2 V OH RECEIVER OUT PHL ...

Page 6

GENERAL DESCRIPTION The SP485R is a low power RS-485 differential transceiver. Similar to the SP485, the SP485R contains a half-duplex driver and receiver with tri-state control. However, the SP485R is in- tended for increased connections on a single bus compared ...

Page 7

N INDEX AREA PIN PDIP JEDEC MS-001 (BA) Variation Date: 6/21/ N ...

Page 8

D e E/2 1 INDEX AREA (D/2 X E1/2) A TOP VIEW SIDE VIEW DIMENSIONS 8 Pin NSOIC Minimum/Maximum (JEDEC MS-012 VARIATION) (mm) COMMON HEIGHT DIMENSION SYMBOL MIN NOM MAX - A 1. ...

Page 9

... SP481REP ..................................................................... -40°C to +85°C ................................................................................................ 8 Pin PDIP SP481REN ..................................................................... -40°C to +85°C ............................................................................................. 8 Pin NSOIC SP481REN/TR ............................................................... -40°C to +85°C ............................................................................................. 8 Pin NSOIC SP485RCP ........................................................................ 0°C to +70°C ................................................................................................ 8 Pin PDIP SP485RCN ........................................................................ 0°C to +70°C ................................................................................................ 8 Pin NOIC SP485RCN/TR .................................................................. 0°C to +70°C ................................................................................................ 8 Pin NOIC SP485REP ..................................................................... -40°C to +85°C ................................................................................................ 8 Pin PDIP SP485REN ..................................................................... -40° ...

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