Features
 Meet the Requirements of the EIA/TIA-485
Standards with 5V Power Supply
 Integrated Transient Voltage Suppressor (TVS)
 TVS Protection for Bus Terminals :
±30 kV IEC 61000-4-2, Contact/Air Discharge
±4.4 kV IEC 61000-4-4, EFT (5/50ns)
±30 A IEC 61000-4-5, Surge (8/20μs)
 HBM ±15kV ESD Protection for all pins
 MM ±800V ESD Protection for all pins
 Latchup immunity up to ±400mA.
 High CDM protection up to ±2kV.
 True Fail-Safe Receiver While Maintaining
EIA/TIA-485 Compatibility
 Hot-Swap Glitch free Protection on Control
Inputs
 Up to 256 Transceivers on the Bus
Applications
 Motor Control
 Industrial Control
 Telecommunications Equipment
 Security System
 Building Automation Networks
Description
The AZRS6534 is a ±30 kV IEC 61000-4-2
Contact/Air Discharge protected, half-duplex
transceiver designed for RS-485 data bus
network, which contains one transmitter and one
receiver. This device is fully compliant with the
EIA/TIA-485 standard with 5V power supply.
The AZRS6534 features a fail-safe receiver,
which guarantees the receiver to output high
when the receiver inputs are open, short or idle.
The AZRS6534 features a hot-swap glitch free
protection circuits which guarantee outputs of
both the transmitter and the receiver in a high
impedance state during the power up period. So
that the large short current from power to ground
will be disable by glitch free function, which will
save the power and enhance the efficiency of the
power up.
The AZRS6534 has the thermal shutdown
function when the temperature is over 150℃ and
the protection of the current limitation in the
transmitter to protect the itself from the damage
by the system-fault conditions during normal
operation.
The AZRS6534 is also a high reliable device with
built-in system level ESD protector device (TVS)
against high-energy noise transients without any
external components.