UNISONIC TECHNOLOGIES CO., LTD

UTRS3085

Preliminary

CMOS IC

www.unisonic.com.tw

1 of 7

Copyright © 2018 Unisonic Technologies Co., Ltd

QW-R113-015.f

FAIL-SAFE, 2.5MBPS, RS-485 /

RS-422 TRANSCEIVERS WITH

±12KV ESD-PROTECTED



DESCRIPTION

The UTC UTRS3085 high-speed transceivers for RS-485/RS-422

communication contain one driver and one receiver. The device

features fail-safe circuitry, which guarantees a logic-high receiver

output when the receiver inputs are open or shorted. This means that

the receiver output will be logic high if all transmitters on a terminated

bus are disabled (high impedance). The UTC UTRS3085 offer higher

driver output slew-rate limits, allowing transmission up to 2.5Mbps.

unloaded or when fully loaded with the drivers disabled.

A device has a 1/8-unit-load receiver input impedance that allows

up to 256 transceivers on the bus.



FEATURES

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

* Enhanced slew-rate limiting facilitates Error-Free data transmission.

* 5.0V single power supply.

* 1µA low-current shutdown mode.

* Allow up to 256 transceivers on the Bus.

* HBM ±12kV ESD protection for Transmitter Output

* Driver short circuit current limit.

* Thermal shutdown for overload protection.

DIP-8

SOP-8



ORDERING INFORMATION

Ordering Number

Lead Free

Halogen Free

Package

Packing

UTRS3085L-D08-T

UTRS3085G-D08-T

DIP-8

Tube

UTRS3085L-S08-R

UTRS3085G-S08-R

SOP-8

Tape Reel