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 unterminated stubs in multidrop and
multipoint applications.
Data rates up to 5Mbps 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.
Features
Pb-Free Plus Anneal Available (RoHS Compliant)
125℃ 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 5Mbps
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
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"
Pinout
P/N Temp(0℃) Package
ISL8483ECPZ -0 to 70 PDIP8
ISL8483EIB -40 to 85 SOIC8
ISL8483EIB-T -40 to 85 SOIC8
ISL8483EIBZ -40 to 85 SOIC8
ISL8483EIBZ-T -40 to 85 SOIC8
ISL8483EIP -40 to 85 PDIP8
ISL8485EABZ -40 to 125 SOIC8
FROM: Company Name: Aunytor Electronic (HK) Co.,Ltd
Contact Person: liao
Skype: Aunytor
Email: 2885745253@qq.com