DATASHEET
ISL83080E/82E/83E/85E/86E/88E
±15kV ESD, 5V, Full Fail-Safe, 1/8 Unit Load, RS-485/RS-422 Transceivers
The ISL8308xE (ISL83080E, ISL83082E, ISL83083E,
ISL83085E, ISL83086E, ISL83088E) are BiCMOS, ESD
Features
• Pb-Free Available (RoHS Compliant)
protected, 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, and unlike competitive
products, this family is specified for 10% tolerance supplies
(4.5V to 5.5V).
• RS-485 I/O Pin ESD Protection . . . . . . . . . . ±15kV HBM
Class 3 ESD Protection (HBM) on all Pins. . . . . . . . >7kV
• Tiny MSOP Packages Save 50% Board Space
• Full Fail-Safe (Open, Short, Terminated and Floating)
Receivers
These devices have very low bus currents (+125µA/-75µA),
so they present a true 1/8 unit load to the RS-485 bus. This
allows up to 256 transceivers on the network without violating
the RS-485 specification’s 32 unit load maximum, and without
using repeaters. For example, in a remote utility meter reading
system, individual meter readings are routed to a concentrator
via an RS-485 network, so the high allowed node count
minimizes the number of repeaters required. Data for all
meters is then read out from the concentrator via a single
access port, or a wireless link.
• Hot Plug Circuitry (ISL83080E, ISL83082E, ISL83083E,
ISL83085E)
- Tx and Rx Outputs Remain Three-state During
Power-up/Power-down
• True 1/8 Unit Load Allows up to 256 Devices on the Bus
• Specified for Single 5V, 10% Tolerance, Supplies
• High Data Rates. . . . . . . . . . . . . . . . . . . . . up to 10Mbps
• Low Quiescent Supply Current . . . . . . . . . . . . . . . 530µA
Ultra Low Shutdown Supply Current . . . . . . . . . . . . 70nA
Receiver (Rx) inputs feature a “Full Fail-Safe” design, which
ensures a logic high Rx output if Rx inputs are floating,
shorted, or terminated but undriven.
• -7V to +12V Common Mode Input Voltage Range
• Half and Full Duplex Pinouts
The ISL83080E, ISL83082E, ISL83083E, ISL83085E use slew
rate limited drivers which reduce EMI, and minimize reflections
from improperly terminated transmission lines, or unterminated
stubs in multidrop and multipoint applications. Slew rate limited
versions also include receiver input filtering to enhance noise
immunity in the presence of slow input signals.
• Three-State Rx and Tx Outputs
• Current Limiting and Thermal Shutdown for driver
Overload Protection
Applications
• Automated Utility Meter Reading Systems
• High Node Count Systems
• Factory Automation
Hot Plug circuitry ensures that the Tx and Rx outputs remain
in a high impedance state until the power supply has
stabilized, and the Tx outputs are fully short circuit protected.
The ISL83080E, ISL83083E, ISL83086E are configured for
full duplex (separate Rx input and Tx output pins)
applications. The half duplex versions multiplex the Rx
inputs and Tx outputs to allow transceivers with output
disable functions in 8 Ld packages.
• Field Bus Networks
• Security Camera Networks
• Building Environmental Control Systems
• Industrial/Process Control Networks
TABLE 1. SUMMARY OF FEATURES
DATA
RATE
(Mbps)
SLEW-
RATE
LIMITED?
#
HALF/FULL
DUPLEX
HOT
PLUG
DEVICES
ON BUS
Rx/Tx
ENABLE?
QUIESCEN LOW POWER
PIN
PART NUMBER
ISL83080E
T I (µA) SHUTDOWN? COUNT
CC
530
Full
Half
Full
Half
Full
Half
0.115
0.115
0.5
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
256
256
256
256
256
256
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
10, 14
ISL83082E
530
530
530
530
530
8
10, 14
8
ISL83083E
ISL83085E
0.5
ISL83086E
10
10, 14
8
ISL83088E
10
No
No
FN6085 Rev 10.02
Oct 2, 2023
Page 1 of 20
© 2004-2023 Renesas Electronics
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