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ISL8491EIBZ-T

Description
±15kV ESD Protected, 5V, 10Mbps, Full Duplex, RS-485/RS-422 Transceiver with Tx/Rx enable; SOIC14; Temp Range: -40° to 85°C
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size814KB,13 Pages
ManufacturerRenesas Electronics Corporation
Websitehttps://www.renesas.com/
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ISL8491EIBZ-T Overview

±15kV ESD Protected, 5V, 10Mbps, Full Duplex, RS-485/RS-422 Transceiver with Tx/Rx enable; SOIC14; Temp Range: -40° to 85°C

ISL8491EIBZ-T Parametric

Parameter NameAttribute value
Brand NameIntersil
MakerRenesas Electronics Corporation
Parts packaging codeSOIC
package instructionROHS COMPLIANT, PLASTIC, MS-012AB, SOIC-14
Contacts14
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time1 week
Differential outputYES
Number of drives1
High level input current maximum value0.000002 A
Input propertiesDIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-422; EIA-485
JESD-30 codeR-PDSO-G14
JESD-609 codee3
length8.65 mm
Humidity sensitivity level3
Number of functions1
Number of terminals14
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Minimum output swing1.5 V
Maximum output low current0.004 A
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP14,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
power supply5 V
Certification statusNot Qualified
Maximum receive delay150 ns
Number of receiver bits1
Maximum seat height1.75 mm
Maximum slew rate0.36 mA
Maximum supply voltage5.5 V
Minimum supply voltage4.5 V
Nominal supply voltage5 V
surface mountYES
technologyBICMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn) - annealed
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
maximum transmission delay50 ns
width3.9 mm
Base Number Matches1
DATASHEET
ISL8488E, ISL8489E, ISL8490E, ISL8491E
±15kV ESD Protected, 5V, Low Power, High Speed and Slew Rate Limited, Full
Duplex, RS-485/RS-422 Transceivers
The ISL8488E, ISL8489E, ISL8490E, ISL8491E devices are
ESD protected, BiCMOS, 5V powered, single transceivers
that meet both the RS-485 and RS-422 standards for
balanced communication. Each driver output and receiver
input is protected against ±15kV ESD strikes, without
latch-up. Unlike competitive versions, these Intersil devices
are specified for 10% tolerance supplies (4.5V to 5.5V).
These devices are configured for full duplex (separate Rx
input and Tx output pins) applications, so they are ideal for
RS-422 networks requiring high ESD tolerance on the bus
pins. The ISL8488E, ISL8490E are 8 Ld versions without Rx
and Tx output enables. The other two versions include Rx
and Tx output enable pins in a standard 14 Ld pinout.
The ISL8488E, ISL8489E 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
ISL8490E, ISL8491E, which feature higher slew rates.
The devices present a “single unit load” to the RS-485 bus,
which allows a total of 32 transmitters and receivers on the
network. For “1/8 unit load” versions (256 devices on the
bus), please refer to the ISL4489E, ISL4491E data sheet.
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.
FN6073
Rev.4.00
July 26, 2007
Features
• RS-485 I/O Pin ESD Protection
 
15kV HBM
- Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM
• High Data Rates (ISL8490E, ISL8491E) . . up to 10Mbps
• Slew Rate Limited for Error Free Data Transmission
(ISL8488E, ISL8489E)
• Single Unit Load Allows up to 32 Devices on the Bus
(See ISL4489E, ISL4491E for 256 Devices on Bus)
• Low Quiescent Current:
- 120
µ
A (ISL8488E)
- 140
µ
A (ISL8489E)
- 370
µ
A (ISL8490E, ISL8491E)
• -7V to +12V Common Mode Input Voltage Range
• Three-State Rx and Tx Outputs (Except ISL8488E,
ISL8490E)
• Full Duplex Pinout
• Operates 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
NUMBER
ISL8488E
ISL8489E
ISL8490E
ISL8491E
HALF/FULL
DUPLEX
Full
Full
Full
Full
HIGH ESD?
Yes
Yes
Yes
Yes
NO. OF DEVICES
ALLOWED ON BUS
32
32
32
32
DATA RATE
(Mbps)
0.25
0.25
10
10
SLEW-RATE
RECEIVER/
QUIESCENT
PIN
LIMITED?
DRIVER ENABLE?
I
CC
(A)
COUNT
Yes
Yes
No
No
No
Yes
No
Yes
120
140
370
370
8
14
8
14
FN6073 Rev.4.00
July 26, 2007
Page 1 of 13

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Description ±15kV ESD Protected, 5V, 10Mbps, Full Duplex, RS-485/RS-422 Transceiver with Tx/Rx enable; SOIC14; Temp Range: -40° to 85°C ±15kV ESD Protected, 5V, 250kbps, Full Duplex, RS-485/RS-422 Transceiver with Tx/Rx enable; SOIC14; Temp Range: -40° to 85°C IC TXRX RS485/422 5V ESD 14SOIC IC TXRX RS422/485 250KBPS 8SOIC ±15kV ESD Protected, 5V, 10Mbps, Full Duplex, RS-485/RS-422 Transceiver; SOIC8; Temp Range: -40° to 85°C ±15kV ESD Protected, 5V, 10Mbps, Full Duplex, RS-485/RS-422 Transceiver; SOIC8; Temp Range: -40° to 85°C LINE TRANSCEIVER, PDSO8, PLASTIC, MS-012AA, SOIC-8 LINE TRANSCEIVER, PDSO8, PLASTIC, MS-012AA, SOIC-8
Maker Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation
Parts packaging code SOIC SOIC SOIC SOICN SOIC SOIC SOIC SOIC
package instruction ROHS COMPLIANT, PLASTIC, MS-012AB, SOIC-14 ROHS COMPLIANT, PLASTIC, MS-012AB, SOIC-14 ROHS COMPLIANT, PLASTIC, MS-012AB, SOIC-14 SOIC-8 ROHS COMPLIANT, PLASTIC, MS-012AA, SOIC-8 ROHS COMPLIANT, PLASTIC, MS-012AA, SOIC-8 SOP, SOP8,.25 SOP, SOP8,.25
Contacts 14 14 14 8 8 8 8 8
Reach Compliance Code compliant compliant compliant compliant compliant compliant not_compliant not_compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Differential output YES YES YES YES YES YES YES YES
Number of drives 1 1 1 1 1 1 1 1
Input properties DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER DIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit type LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER
Interface standards EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485 EIA-422; EIA-485
JESD-30 code R-PDSO-G14 R-PDSO-G14 R-PDSO-G14 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8
JESD-609 code e3 e3 e3 e3 e3 e3 e0 e0
length 8.65 mm 8.65 mm 8.65 mm 4.9 mm 4.9 mm 4.9 mm 4.9 mm 4.9 mm
Number of functions 1 1 1 1 1 1 1 1
Number of terminals 14 14 14 8 8 8 8 8
Maximum operating temperature 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP SOP SOP SOP SOP SOP SOP SOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) 260 260 260 NOT SPECIFIED 260 260 240 240
Maximum receive delay 150 ns 2000 ns 2000 ns 2000 ns 2000 ns 2000 ns 2000 ns 2000 ns
Number of receiver bits 1 1 1 1 1 1 1 1
Maximum seat height 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm
Maximum supply voltage 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage 4.5 V 4.5 V 4.5 V 4.5 V 4.5 V 4.5 V 4.5 V 4.5 V
Nominal supply voltage 5 V 5 V 5 V 5 V 5 V 5 V 5 V 5 V
surface mount YES YES YES YES YES YES YES YES
technology BICMOS BICMOS BICMOS BICMOS BICMOS BICMOS BICMOS BICMOS
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal surface Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed MATTE TIN Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 30 30 30 NOT SPECIFIED 30 30 NOT SPECIFIED 30
maximum transmission delay 50 ns 2000 ns 2000 ns 2000 ns 2000 ns 2000 ns 2000 ns 2000 ns
width 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm
Brand Name Intersil Intersil Intersil Renesas Intersil Intersil - -
Factory Lead Time 1 week 1 week 7 weeks - 7 weeks 1 week - -
High level input current maximum value 0.000002 A 0.000002 A 0.000002 A - - - 0.000002 A 0.000002 A
Humidity sensitivity level 3 3 3 - 3 3 1 1
Minimum output swing 1.5 V 1.5 V 1.5 V - - - 1.5 V 1.5 V
Maximum output low current 0.004 A 0.004 A 0.004 A - - - 0.004 A 0.004 A
Encapsulate equivalent code SOP14,.25 SOP14,.25 SOP14,.25 - - - SOP8,.25 SOP8,.25
power supply 5 V 5 V 5 V - - - 5 V 5 V
Certification status Not Qualified Not Qualified Not Qualified - Not Qualified Not Qualified Not Qualified Not Qualified
Maximum slew rate 0.36 mA 0.16 mA 0.16 mA - - - 0.14 mA 0.14 mA
Base Number Matches 1 1 1 1 1 1 - -
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