ISL83490IBZ Intersil, ISL83490IBZ Datasheet

TXRX RS-485/422 3.3V LP 8-SOIC

ISL83490IBZ

Manufacturer Part Number
ISL83490IBZ
Description
TXRX RS-485/422 3.3V LP 8-SOIC
Manufacturer
Intersil
Type
Transceiverr
Datasheet

Specifications of ISL83490IBZ

Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL83490IBZ
Manufacturer:
Intersil
Quantity:
686
Part Number:
ISL83490IBZ
Manufacturer:
INTERSIL
Quantity:
20 000
Part Number:
ISL83490IBZ-T
Manufacturer:
INTERSIL
Quantity:
20 000
3.3V, Low Power, High Speed or Slew Rate
Limited, RS-485/RS-422 Transceivers
These Intersil RS-485/RS-422 devices are BiCMOS 3.3V
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 (3V to 3.6V).
The ISL83483 and ISL83488 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 10Mbps are achievable by using the
ISL83485, ISL83490, or ISL83491, which feature higher
slew rates.
Logic inputs (e.g., DI and DE) accept signals in excess of
5.5V, making them compatible with 5V logic families.
Receiver (Rx) inputs feature a “fail-safe if open” design,
which ensures a logic high output if Rx inputs are floating. All
devices present a “single unit load” to the RS-485 bus, which
allows up to 32 transceivers on the network.
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 ISL83488, ISL83490, ISL83491 are configured for full
duplex (separate Rx input and Tx output pins) applications.
The ISL83488 and ISL83490 are offered in space saving 8
lead packages for applications not requiring Rx and Tx
output disable functions (e.g., point-to-point and RS-422).
Half duplex configurations (ISL83483, ISL83485) multiplex
the Rx inputs and Tx outputs to provide transceivers with Rx
and Tx disable functions in 8 lead packages.
NUMBER
ISL83483
ISL83485
ISL83488
ISL83490
ISL83491
PART
HALF/FULL
DUPLEX
Half
Half
Full
Full
Full
®
1
DATA RATE
(Mbps)
0.25
0.25
10
10
10
Data Sheet
SLEW-RATE
TABLE 1. SUMMARY OF FEATURES
LIMITED?
Yes
Yes
No
No
No
1-888-INTERSIL or 321-724-7143
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
RECEIVER/DRIVER
ENABLE?
Features
• Operate from a Single +3.3V Supply (10% Tolerance)
• Interoperable with 5V Logic
• High Data Rates. . . . . . . . . . . . . . . . . . . . . up to 10Mbps
• Single Unit Load Allows up to 32 Devices on the Bus
• Slew Rate Limited Versions for Error Free Data
• Low Current Shutdown Mode (ISL83483, ISL83485,
• -7V to +12V Common Mode Input Voltage Range
• Three State Rx and Tx Outputs (Except ISL83488,
• 10ns Propagation Delay, 1ns Skew (ISL83485, ISL83490,
• Full Duplex and Half Duplex Pinouts
• Current Limiting and Thermal Shutdown for driver
• Pb-free available
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”
Yes
Yes
Yes
ISL83483, ISL83485, ISL83488,
No
No
Transmission (ISL83483, ISL83488) . . . . . .up to 250kbps
ISL83491). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15nA
ISL83490)
ISL83491)
Overload Protection
All other trademarks mentioned are the property of their respective owners.
August 2004
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
QUIESCENT I
Copyright © Intersil Americas Inc. 2003, 2004. All Rights Reserved
(mA)
0.65
0.65
0.65
0.65
0.65
ISL83490, ISL83491
CC
SHUTDOWN?
LOW POWER
Yes
Yes
Yes
No
No
FN6052.3
PIN COUNT
14
8
8
8
8

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ISL83490IBZ Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 321-724-7143 Intersil (and design registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2003, 2004. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ...

Page 2

... ISL83485IP - PDIP ISL83488IB* - SOIC (83488IB) ISL83488IBZ* - SOIC (83488IB) (Note) (Pb-free) ISL83488IP - PDIP ISL83490IB* - SOIC (83490IB) ISL83490IBZ* - SOIC (83490IB) (Note) (Pb-free) ISL83490IP - PDIP ISL83491IB* - SOIC ISL83491IBZ* - SOIC (Note) (Pb-free) ISL83491IP - PDIP *Add “-T” suffix to part number for tape and reel packaging. ...

Page 3

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Pin Descriptions PIN RO Receiver output > least 0.2V high < 0.2V or more low High if A and B ...

Page 4

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Typical Operating Circuits +3. B/Z A GND 5 +3. ...

Page 5

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Absolute Maximum Ratings V to Ground ...

Page 6

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Electrical Specifications Test Conditions: V Note 2 (Continued) PARAMETER SYMBOL Three-State (high impedance) I OZR Receiver Output Current Receiver Input Resistance R No-Load Supply Current (Note Shutdown Supply Current I SHDN (Except ...

Page 7

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Electrical Specifications Test Conditions: V Note 2 (Continued) PARAMETER SYMBOL Driver Disable from Output Low t (Except ISL83488) Driver Enable from Shutdown to t ZH(SHDN) Output High (Except ISL83488) Driver Enable from Shutdown to t ...

Page 8

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Test Circuits and Waveforms FIGURE 1A. V AND SIGNAL GENERATOR FIGURE 2A. DIFFERENTIAL TEST CIRCUIT OUT DE ...

Page 9

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Test Circuits and Waveforms SIGNAL Y GENERATOR PARAMETER OUTPUT Y/Z 0 (Note Y/Z 0 (Note ...

Page 10

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Application Information RS-485 and RS-422 are differential (balanced) data transmission standards for use in long haul or noisy environments. RS-422 is a subset of RS-485, so RS-485 transceivers are also RS-422 compliant. RS-422 is a ...

Page 11

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Low Power Shutdown Mode (ISL83483, ISL83485, ISL83491 Only) These CMOS transceivers all use a fraction of the power required by their bipolar counterparts, but the ISL83483, ISL83485, ISL83491 include a shutdown feature that reduces the ...

Page 12

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Typical Performance Curves 1200 R = 54Ω DIFF 1100 t PLHZ 1000 900 800 700 -40 0 -25 25 TEMPERATURE ( FIGURE 10. DRIVER PROPAGATION DELAY vs TEMPERATURE (ISL83483, ISL83488 54Ω DIFF ...

Page 13

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Typical Performance Curves R DIFF 2.5 B/Z 2 1.5 1 A/Y 0.5 0 TIME (10ns/DIV) FIGURE 16. DRIVER AND RECEIVER WAVEFORMS, LOW TO HIGH (ISL83485, ISL83490, ISL83491) Die Characteristics SUBSTRATE ...

Page 14

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Dual-In-Line Plastic Packages (PDIP INDEX N/2 AREA -B- -A- D BASE PLANE -C- SEATING PLANE 0.010 (0.25 NOTES: 1. Controlling Dimensions: INCH. ...

Page 15

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Dual-In-Line Plastic Packages (PDIP INDEX N/2 AREA -B- -A- D BASE PLANE -C- SEATING PLANE 0.010 (0.25 NOTES: 1. Controlling Dimensions: INCH. ...

Page 16

ISL83483, ISL83485, ISL83488, ISL83490, ISL83491 Small Outline Plastic Packages (SOIC) N INDEX 0.25(0.010) H AREA E - SEATING PLANE - -C- α µ 0.10(0.004) 0.25(0.010 NOTES: ...

Page 17

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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