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| ESD Protected to ±15kV, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers |
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Available in RoHS/Pb-Free
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 Buy direct from Intersil
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 Check distributor inventory
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 Request samples
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Part No. |
Design-In
Status |
Temp. |
Package |
MSL |
Price
US $ |
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| ISL8485EABZ |
Active |
Full-Range Ind |
8 Ld SOIC |
1 |
1.36 |
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| ISL8485EABZ-T |
Active |
Full-Range Ind |
8 Ld SOIC T+R |
1 |
1.36 |
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| ISL8485ECB |
Active |
Comm |
8 Ld SOIC |
1 |
1.00 |
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| ISL8485ECB-T |
Active |
Comm |
8 Ld SOIC T+R |
1 |
1.00 |
|  |
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| ISL8485ECBZ |
Active |
Comm |
8 Ld SOIC |
1 |
1.00 |
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| ISL8485ECBZ-T |
Active |
Comm |
8 Ld SOIC T+R |
1 |
1.00 |
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| ISL8485ECP |
Active |
Comm |
8 Ld PDIP |
N/A |
1.07 |
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| ISL8485ECPZ |
Active |
Comm |
8 Ld PDIP |
N/A |
1.07 |
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| ISL8485EIB |
Active |
Ind |
8 Ld SOIC |
1 |
1.07 |
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| ISL8485EIB-T |
Active |
Ind |
8 Ld SOIC T+R |
1 |
1.07 |
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| ISL8485EIBZ |
Active |
Ind |
8 Ld SOIC |
1 |
1.07 |
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| ISL8485EIBZ-T |
Active |
Ind |
8 Ld SOIC T+R |
1 |
1.07 |
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| ISL8485EIP |
Active |
Ind |
8 Ld PDIP |
N/A |
1.07 |
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| ISL8485EIPZ |
Active |
Ind |
8 Ld PDIP |
N/A |
1.07 |
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| The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice. |
| MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020 |
| SMD = Standard Microcircuit Drawing |
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 Description |
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These Intersil RS-485, RS-422 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/receiver input is protected against ±15kV ESD strikes, without latch-up. Unlike competitive devices, this Intersil family is specified for 10% tolerance supplies (4.5V to 5.5V).
The ISL8483E utilizes slew rate limited drivers which reduce EMI, and minimize reflections from improperly terminated transmission lines, or un-terminated stubs in multidrop and multi-point applications.
Data rates up to 10Mbps are achievable by using the ISL8485E which features higher slew rates. Both 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.
These half duplex configurations multiplex the Rx inputs and Tx outputs to allow transceivers with Rx and Tx disable functions in 8 lead packages. |
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 Key Features |
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Pb-Free Available (RoHS Compliant)
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125°C Temperature Option
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RS-485 I/O Pin ESD Protection ±15kV HBM
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Class 3 ESD Level on all Other Pins >7kV HBM
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Specified for 10% Tolerance Supplies
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High Data Rate Version (ISL8485E) up to 10Mbps
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Slew Rate Limited Version for Error Free Data Transmission (ISL8483E) up to 250kbps
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Single Unit Load Allows up to 32 Devices on the Bus
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1nA Low Current Shutdown Mode (ISL8483E)
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Low Quiescent Current:
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160μA (ISL8483E)
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500μA (ISL8485E)
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-7V to +12V Common Mode Input Voltage Range
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Three State Rx and Tx Outputs
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30ns Propagation Delays, 5ns Skew (ISL8485E)
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Operate from a Single +5V Supply (10% Tolerance)
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Current Limiting and Thermal Shutdown for driver Overload Protection
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| Related Documentation |
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 Datasheet(s): |
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 Technical Homepage: |
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 Design Model(s): |
| | | | | |  Parametric Data | | | # of Tx / # of Rx | | 1/1 | | | Devices Allowed on Bus | | 32 | | | Half/Full Duplex | | Half | | | High ESD | | Yes | | | Hot Plug | | No | | | Data Rate (Mbps) | | 10 | | | Slew Rate Limited | | No | | | Tx/Rx Enable | | Yes | | | IS EN/DIS (µA) | | 550/340 | | | SHDN ICC (µA) | | N/A | | | VCC Range (+V) | | 4.5 to 5.5 | |
| | |  Application Block Diagrams | | | | | | | | | | 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”
| | | | | | | | | ISL3159E | | ±15kV ESD Protected, +125°C, 40Mbps, 5V, PROFIBUS®, Full Fail-safe, RS-485/RS-422 Transceivers | | | | ISL3179E | | ±15kV ESD Protected, +125°C, 40Mbps, 3.3V, Full Fail-Safe, RS-485/RS-422 Transceivers | | | | ISL3280E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23 Package, 20Mbps, Full Fail-safe, Low Power, RS-485/RS-422 Receivers | | | | ISL3281E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23 Package, 20Mbps, Full Fail-safe, Low Power, RS-485/RS-422 Receivers | | | | ISL3282E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, TDFN Package, 20Mbps, Full Fail-safe, Low Power, RS-485/RS-422 Receivers | | | | ISL3283E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23 Package, 20Mbps, Full Fail-safe, Low Power, RS-485/RS-422 Receivers | | | | ISL3284E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23 Package, 20Mbps, Full Fail-safe, Low Power, RS-485/RS-422 Receivers | | | | ISL3285E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23/TDFN Packaged, 20Mbps, Full Fail-safe, Low Power, RS-485/RS-422 Receivers | | | | ISL3293E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23/TDFN Packaged, Low Power, RS-485/RS-422 Transmitters | | | | ISL3294E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23/TDFN Packaged, Low Power, RS-485/RS-422 Transmitters | | | | ISL3295E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23/TDFN Packaged, Low Power, RS-485/RS-422 Transmitters | | | | ISL3296E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23/TDFN Packaged, Low Power, RS-485/RS-422 Transmitters | | | | ISL3297E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23/TDFN Packaged, Low Power, RS-485/RS-422 Transmitters | | | | ISL3298E | | ±16.5kV ESD Protected, +125°C, 3.0V to 5.5V, SOT-23/TDFN Packaged, Low Power, RS-485/RS-422 Transmitters | | | | ISL4485E | | 5V, Half Duplex, 20Mbps, ±15kV ESD Protected, RS-485/RS-422 Transceiver | | | | ISL4486 | | 5V, Half Duplex, 40Mbps,RS-485/RS-422 Transceiver | | | | ISL81485 | | 5V, Half Duplex, 30Mbps, RS-485/RS-422 Transceiver | | | | ISL81486 | | 5V, Half Duplex, 30Mbps, RS-485/RS-422 Transceiver | | | | ISL81487 | | 5V, Half Duplex, 5Mbps, ±15kV ESD Protected, RS-485/RS-422 Transceiver | | | | ISL81487E | | 5V, Half Duplex, 5Mbps, ±15kV ESD Protected, RS-485/RS-422 Transceiver | | | | ISL8483 | | 5V, Half Duplex, 250kbps Slew Rate Limited, RS-485/RS-422 Transceiver | | | | ISL8483E | | ESD Protected to ±15kV, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers | | | | ISL8485 | | 5V, Half Duplex, 5Mbps, RS-485/RS-422 Transceiver | | | | ISL8488E | | ±15kV ESD Protected, 5V, Low Power, High Speed and Slew Rate Limited, Full Duplex, RS-485/RS-422 Transceivers | | | | ISL8489E | | ±15kV ESD Protected, 5V, Low Power, High Speed and Slew Rate Limited, Full Duplex, RS-485/RS-422 Transceivers | | | | ISL8490 | | 5V, Full Duplex, 5Mbps, RS-485/RS-422 Transceiver | | | | ISL8490E | | ±15kV ESD Protected, 5V, Low Power, High Speed and Slew Rate Limited, Full Duplex, RS-485/RS-422 Transceivers | | | | ISL8491 | | 5V, Full Duplex, 5Mbps With Enable, RS-485/RS-422 Transceiver | | | | ISL8491E | | ±15kV ESD Protected, 5V, Low Power, High Speed and Slew Rate Limited, Full Duplex, RS-485/RS-422 Transceivers | |
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