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Intersil Electronic Components Datasheet

ISL8483 Datasheet

RS-485/RS-422 Transceivers

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®
Data Sheet
ISL8483, ISL8485, ISL8488,
ISL8489, ISL8490, ISL8491
February 28, 2006
FN6046.8
5V, Low Power, High Speed or Slew Rate
Limited, RS-485/RS-422 Transceivers
The Intersil RS-485/RS-422 devices are BiCMOS 5V
powered, single transceivers that meet both the RS-485 and
RS-422 standards for balanced communication. Unlike
competitive devices, this Intersil family is specified for 10%
tolerance supplies (4.5V to 5.5V).
The ISL8483, ISL8488, and ISL8489 utilize slew rate limited
drivers which reduce EMI, and minimize reflections from
improperly terminated transmission lines, or unterminated
stubs in multidrop and multipoint applications.
Data rates up to 5Mbps are achievable by using the
ISL8485, ISL8490, or ISL8491, which feature higher slew
rates.
All devices present a “single unit load” to the RS-485 bus,
which allows up to 32 transceivers on the network.
Receiver (Rx) inputs feature a “fail-safe if open” design,
which ensures a logic high Rx output if Rx inputs are
floating.
Driver (Tx) outputs are short circuit protected, even for
voltages exceeding the power supply voltage. Additionally,
on-chip thermal shutdown circuitry disables the Tx outputs to
prevent damage if power dissipation becomes excessive.
The ISL8488 - 91 are configured for full duplex (separate Rx
input and Tx output pins) applications. The ISL8488 and
ISL8490 are offered in space saving 8 lead packages for
applications not requiring Rx and Tx output disable functions
(e.g., point-to-point). Half duplex configurations (ISL8483,
ISL8485) multiplex the Rx inputs and Tx outputs to allow
transceivers with Rx and Tx disable functions in 8 lead
packages.
Features
• Specified for 10% Tolerance Supplies
• Class 3 ESD Protection (HBM) on all Pins. . . . . . . . >7kV
• High Data Rates. . . . . . . . . . . . . . . . . . . . . . up to 5Mbps
• Slew Rate Limited Versions for Error Free Data
Transmission at 250kbps (ISL8483, ISL8488, ISL8489)
• Single Unit Load Allows up to 32 Devices on the Bus
• 1nA Low Current Shutdown Mode (ISL8483)
• Low Quiescent Current:
- 160µA (ISL8483, ISL8488, ISL8489)
- 500µA (ISL8485, ISL8490, ISL8491)
• -7V to +12V Common Mode Input Voltage Range
• Three State Rx and Tx Outputs (Except ISL8488,
ISL8490)
• 30ns Propagation Delays, 5ns Skew (ISL8485, ISL8490,
ISL8491)
• Full Duplex and Half Duplex Pinouts
• Operate from a Single +5V Supply (10% Tolerance)
• Current Limiting and Thermal Shutdown for driver
Overload Protection
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Factory Automation
• Security Networks
• Building Environmental Control Systems
• Industrial/Process Control Networks
• Level Translators (e.g., RS-232 to RS-422)
• RS-232 “Extension Cords”
TABLE 1. SUMMARY OF FEATURES
PART HALF/FULL NO. OF DEVICES DATA RATE SLEW-RATE
RECEIVER/
QUIESCENT LOW POWER PIN
NUMBER DUPLEX ALLOWED ON BUS (Mbps)
LIMITED? DRIVER ENABLE? ICC (µA) SHUTDOWN? COUNT
ISL8483
Half
32
0.25
Yes
Yes
160
Yes
8
ISL8485
Half
32
5
No
Yes
500
No
8
ISL8488
Full
32
0.25
Yes
No
160
No
8
ISL8489
Full
32
0.25
Yes
Yes
160
No
14
ISL8490
Full
32
5
No
No
500
No
8
ISL8491
Full
32
5
No
Yes
500
No
14
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003, 2005, 2006. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.


Intersil Electronic Components Datasheet

ISL8483 Datasheet

RS-485/RS-422 Transceivers

No Preview Available !

ISL8483, ISL8485, ISL8488, ISL8489, ISL8490, ISL8491
Ordering Information
PART NUMBER
PART MARKING
TEMP. RANGE (°C)
PACKAGE
PKG. DWG. #
ISL8483CPZ (Note)
ISL8483CPZ
-40 to 85
8 Ld PDIP* (Pb-free)
E8.3
ISL8483IB
8483IB
-40 to 85
8 Ld SOIC
M8.15
ISL8483IBZ (Note)
8483IBZ
-40 to 85
8 Ld SOIC (Pb-free)
M8.15
ISL8483IB-T
8483IB
8 Ld SOIC Tape and Reel
M8.15
ISL8483IBZ-T (Note)
8483IBZ
8 Ld SOIC Tape and Reel (Pb-free)
M8.15
ISL8483IP
ISL8483IP
-40 to 85
8 Ld PDIP
E8.3
ISL8483IPZ (Note)
ISL8483IPZ
-40 to 85
8 Ld PDIP* (Pb-free)
E8.3
ISL8485CB
8485CB
0 to 70
8 Ld SOIC
M8.15
ISL8485CBZ (Note)
8485CBZ
0 to 70
8 Ld SOIC(Pb-free)
M8.15
ISL8485CB-T
8485CB
8 Ld SOIC Tape and Reel
M8.15
ISL8485CBZ-T (Note)
8485CBZ
8 Ld SOIC Tape and Reel (Pb-free)
M8.15
ISL8485CP
ISL8485CP
0 to 70
8 Ld PDIP
E8.3
ISL8485CPZ (Note)
ISL8485CPZ
0 to 70
8 Ld PDIP* (Pb-free)
E8.3
ISL8485IB
8485IB
-40 to 85
8 Ld SOIC
M8.15
ISL8485IBZ (Note)
8485IBZ
-40 to 85
8 Ld SOIC (Pb-free)
M8.15
ISL8485IB-T
8485IB
8 Ld SOIC Tape and Reel
M8.15
ISL8485IBZ-T (Note)
8485IBZ
8 Ld SOIC Tape and Reel (Pb-free)
M8.15
ISL8485IP
ISL8485IP
-40 to 85
8 Ld PDIP
E8.3
ISL8485IPZ (Note)
ISL8485IPZ
-40 to 85
8 Ld PDIP* (Pb-free)
E8.3
ISL8488IB
8488IB
-40 to 85
8 Ld SOIC
M8.15
ISL8488IBZ (Note)
8488IBZ
-40 to 85
8 Ld SOIC (Pb-free)
M8.15
ISL8488IB-T
8488IB
8 Ld SOIC Tape and Reel
M8.15
ISL8488IBZ-T (Note)
8488IBZ
8 Ld SOIC Tape and Reel (Pb-free)
M8.15
ISL8488IP
ISL8488IP
-40 to 85
8 Ld PDIP
E8.3
ISL8488IPZ (Note)
ISL8488IPZ
-40 to 85
8 Ld PDIP* (Pb-free)
E8.3
ISL8489IB
ISL8489IB
-40 to 85
14 Ld SOIC
M14.15
ISL8489IB-T
ISL8489IB
14 Ld SOIC Tape and Reel
M14.15
ISL8489IP
ISL8489IP
-40 to 85
14 Ld PDIP
E14.3
ISL8490IB
8490IB
-40 to 85
8 Ld SOIC
M8.15
ISL8490IBZ (Note)
8490IBZ
-40 to 85
8 Ld SOIC (Pb-free)
M8.15
ISL8490IB-T
8490IB
8 Ld SOIC Tape and Reel
M8.15
ISL8490IBZ-T (Note)
8490IBZ
8 Ld SOIC Tape and Reel (Pb-free)
M8.15
ISL8490IP
ISL8490IP
-40 to 85
8 Ld PDIP
E8.3
ISL8491IB
ISL8491IB
-40 to 85
14 Ld SOIC
M14.15
ISL8491IBZ (Note)
8491IBZ
-40 to 85
14 Ld SOIC (Pb-free)
M14.15
ISL8491IB-T
ISL8491IB
14 Ld SOIC Tape and Reel
M14.15
ISL8491IBZ-T (Note)
8491IBZ
14 Ld SOIC Tape and Reel (Pb-free)
M14.15
ISL8491IP
ISL8491IP
-40 to 85
14 Ld PDIP
E14.3
*Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are
MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
2
FN6046.8
February 28, 2006


Part Number ISL8483
Description RS-485/RS-422 Transceivers
Maker Intersil
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ISL8483 Datasheet PDF






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