UTRS485

DESCRIPTION 

The UTC UTRS485 is a half-duplex transceiver designed for 

RS-485 data bus network, which contains one transmitter and one 

receiver. The UTC UTRS485 features a fail-safe receiver, which 

guarantees the receiver to output high when the receiver inputs are 

open. 

The UTC UTRS485 also 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 UTC UTRS485 is optimized for signal rates up to 4.5Mbps 

with differential voltage of 2.3V. The UTC UTRS485 also 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. 

FEATURES 

* Meet the requirements of the EIA/TIA-485 standards. 

* 5.0V single power supply. 

* True fail-safe receiver while maintaining EIA/TIA-485 compatibility. 

* Hot-Swap glitch free protection on control inputs. 

* Up to 32 transceivers on the bus. 

* Driver short circuit current limit. 

* Thermal shutdown for overload protection

规格书UTRS485