UNISONIC TECHNOLOGIES CO., LTD

UTRS3088

Preliminary

CMOS IC

www.unisonic.com.tw

1 of 8

Copyright © 2015 Unisonic Technologies Co., Ltd

QW-R113-012.a

FAIL-SAFE, 1.0MBPS, RS-485 /

RS-422 TRANSCEIVERS WITH

±

15KV ESD-PROTECTED



DESCRIPTION

The UTC UTRS3088 is a half-duplex transceiver designed for

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

receiver. The UTC UTRS3088 features a fail-safe receiver, which

guarantees the receiver to output high when the receiver inputs are

open, short or idle.

The UTC UTRS3088 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 UTRS3088 is optimized for signal rates up to 1.0Mbps

with differential voltage of 2.3V. The UTC UTRS3088 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.

* 1µA low-current shutdown mode.

* HBM ±15kV ESD protection.

* 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.

* Maximum baud rate up to 1.0Mbps.

* Transmitter short circuit current limit.

* Thermal shutdown for overload protection.



ORDERING INFORMATION

Ordering Number

Package

Packing

UTRS3088G-S08-R

SOP-8

Tape Reel

UTRS3088G-S08-R

(1)Packing Type

(2)Package Type

(1) R: Tape Reel

(2) S08: SOP-8

(3) G: Halogen Free and Lead Free

(3)Green Package