ISL8485E ESD Protected to ±15kV, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers

ISL8485E

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ESD Protected to ±15kV, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers

Datasheets,
Related Docs
& Simulations

Ordering Information

iBuy direct from Intersil	iBuy direct - out of stock	Request samples
Check distributor inventory	Available in RoHS/Pb-Free

Part No.

Design-In
Status

Temp.

Package

MSL

Price
US $

ISL8485EABZ

Active

Full-Range Ind

8 Ld SOIC

1.36

ISL8485EABZ-T

Active

Full-Range Ind

8 Ld SOIC T+R

1.36

ISL8485ECBZ

Active

Comm

8 Ld SOIC

1.00

ISL8485ECBZ-T

Active

Comm

8 Ld SOIC T+R

1.00

ISL8485ECPZ

Active

Comm

8 Ld PDIP

N/A

1.07

ISL8485EIB

Active

Ind

8 Ld SOIC

1.28

ISL8485EIBZ

Active

Ind

8 Ld SOIC

1.07

ISL8485EIBZ-T

Active

Ind

8 Ld SOIC T+R

1.07

ISL8485EIP

Active

Ind

8 Ld PDIP

N/A

1.28

ISL8485EIPZ

Active

Ind

8 Ld PDIP

N/A

1.07

ISL8485EMPZ

Active

Mil

8 Ld PDIP

N/A

6.00

ISL8485ECB

InActive

Comm

8 Ld SOIC

N/A

ISL8485ECB-T

InActive

Comm

8 Ld SOIC T+R

N/A

ISL8485ECP

InActive

Comm

8 Ld PDIP

N/A

ISL8485EIB-T

To Be
Discontinued

Ind

8 Ld SOIC T+R

1.07

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

Description

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.

Key Features

Pb-Free Available (RoHS Compliant)
125°C Temperature Option
RS-485 I/O Pin ESD Protection ±15kV HBM
- Class 3 ESD Level on all Other Pins >7kV HBM
Specified for 10% Tolerance Supplies
High Data Rate Version (ISL8485E) up to 10Mbps
Slew Rate Limited Version for Error Free Data Transmission (ISL8483E) up to 250kbps
Single Unit Load Allows up to 32 Devices on the Bus
1nA Low Current Shutdown Mode (ISL8483E)
Low Quiescent Current:
- 160μA (ISL8483E)
- 500μA (ISL8485E)
-7V to +12V Common Mode Input Voltage Range
Three State Rx and Tx Outputs
30ns Propagation Delays, 5ns Skew (ISL8485E)
Operate from a Single +5V Supply (10% Tolerance)
Current Limiting and Thermal Shutdown for driver Overload Protection

Related Documentation

Datasheet(s):
ESD Protected to ±15kV, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers

Technical Homepage:
Interface ICs

Design Model(s):
IBIS model for an TIA/EIA-485/422 Transceiver

Parametric Data


# of Tx		1

# of Rx		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

I_S EN/DIS (µA)		550/340

SHDN I_CC (µA)		N/A

V_CC Range (V)		4.5 to 5.5

V_L Pin		No

V_CC (min) (V)		4.5

V_CC (max) (V)		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"

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Parametric Table

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	ISL81483		5V, Half Duplex, 250kbps Slew Rate Limited, RS-485/RS-422 Transceiver
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	ISL81487E		5V, Half Duplex, 5Mbps, ±15kV ESD Protected, RS-485/RS-422 Transceiver
	ISL81487L		5V, Half Duplex, 250kbps Slew Rate Limited, ±15kV ESD Protected, RS-485/RS-422 Transceiver
	ISL83483		3.3V, Half Duplex, 250kbps Slew Rate Limited, RS-485/RS-422 Transceiver
	ISL83485		3.3V, Half Duplex, 10Mbps, RS-485/RS-422 Transceiver
	ISL83488		3.3V, Full Duplex, 250kbps Slew Rate Limited, RS-485/RS-422 Transceiver
	ISL83490		3.3V, Full Duplex, 10Mbps, RS-485/RS-422 Transceiver
	ISL83491		3.3V, Full Duplex, 10Mbps With Enable, 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
	ISL8487E		5V, Half Duplex, 250kbps Slew Rate Limited, ±15kV ESD Protected, 1/8 Unit Load, RS-485/RS-422 Transceiver
	ISL8488		5V, Full Duplex, 250kbps Slew Rate Limited, 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
	ISL8489		5V, Full Duplex, 250kbps Slew Rate Limited With Enable, RS-485/RS-422 Transceiver
	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